The OP of this thread PM'ed me with some additional questions but, as I explained in the PM, I much prefer to answer questions in the group so others may benefit. I do not give "private advice." Not anything bad, I just prefer to stay within the group.
The questions were: Regarding the rail pass if i purchase it can i take unlimited rides beetween narita and tokyo station ( on the fast Jr east line). I plant to go to Kyoto from Tokyo and maybe take a day trip to osaka. I guess it would be economical to buy it?. Lastly regarding the hotel i could really use some specific names of where to stay, right now im still considering staying to nartia as i can get a room for 8000 Yen. Any specific names you can recomend in Tokyo.
Others may have better answers, but here is my take.
Several of your questions refer to staying in "Narita" and taking the train to/from Narita. We need to know if you are referring to Narita Airport (NRT) or Narita (city.) They are close together but NOT the same location and do not use the same train station. You can get to Narita city in about 10 minutes on a local train from NRT.
The "fast JR East line" from NRT into Tokyo is the "Narita Express" and your JR Pass will cover rides on it. It doesn't, however, stop in Narita city. The fast train that goes into Tokyo through (and from) Narita city is the Keisei Line and it is NOT covered by the JR Pass. To make it even more confusing, many of us prefer the Keisei Skyliner train from NRT to Ueno in Tokyo but again, the JR Rail Pass does not cover it. If you will be staying longer than the 7 days your JR Rail Pass will cover, you will need to pay out-of-pocket for at least one of your trips to/from the airport. The Keisei option to Ueno is considerably cheaper than the Narita Express and delivers you to Ueno instead of Tokyo Station way downtown.
I am finding it difficult to accept that you can find an airport area hotel room for two for 8000 yen/night. Keep in mind that most hotel room rates in Japan are per person, not per room. You should be looking at "twin" or "double" rates - or even "semi-double" if you are both fairly small and don't mind crowding. I usually book a "semi-double" for myself when I can find one. It is about halfway between a twin bed and a double bed in width.
I repeat, running back and forth between NRT and Tokyo for several days would be a real waste of time.
When you say you are going "to Kyoto," do you mean one-way, or are you coming back to Tokyo before departure? If so, then yes, the Rail Pass would be worth it. Remember that it is good for 7 days. You must plan your long distance travel to fall within a 7 day window. For example, you could use the Pass to ride into Tokyo on Day 1, spend 3 days in Tokyo (Day 2-4), go to Kyoto in the afternoon of Day 4, spend 3 days in Kyoto (Day 5-7) and then return to Tokyo in the afternoon of Day 7. I would do it differently, though. I would purchase a special NRT Express ticket that comes with a 1- or 2-day subway/local train pass (the N'Ex + Suica) for the first trip into the city and a day or 2 touring the city. Then I would "activate" the Rail Pass and use it for the last 7 days of my stay, including that last ride out to NRT to go home. Using the Rail Pass takes a little planning to get the most value.
As for specific hotels, I don't know of many that will accommodate 2 people for under 8000 yen/night other than "backpacker" type places. I found a couple in the Asakusa/Ueno area but have never used them so cannot recommend anything. If you use the website link I gave you for Japan Hotel Net, click on the map for "Greater Tokyo," then select "Central Tokyo" and then select "Asakusa." Asakusa is not in the middle of town but is on subway lines that go nearly everywhere and the room rates tend to be a bit lower. Just look at the various hotels listed and click on one that looks promising. Then select "Room Rates" near the top of the page to see what they charge. If you find something you like, the website will take care of reservations and booking. And Asakusa/Ueno both have great tourist sites to see. Of course, don't limit your search to only Asakusa. Try some of the other links to see the rates in other parts of town. You might get lucky. On the JHN site, I think you are going to have to look for the "Budget Hotel" and "Backpacker" categories to get close to 8000 yen.
I looked at the various hotel offerings and found one or two that come close to your budget but I have never seen them and cannot make a recommendation. For example, the Oak Hotel and the Asakusa Tokaiso both fit your budget but don't look like someplace I'd select. Sorry I can't be more specific but the places I can recommend will run well over 10,000 for a double.
I hope this gives you a little more to go on.
JR