I feel I am the opposite of many travellers on here too. Lots like to visit many cities on their trip staying 3 or 4 days here and there and spending lots of time travelling to their next destination.
I like to go to one city and spend 2 weeks there. I'm currently looking at Hong Kong and am getting the "2 weeks it too much" vibe. I told my travel agent who also made the comment that I don't want to be doing stuff from 9 am to 6 pm every day. I like breakfast whenever I wake up, be it 9 or 10 (I work hard so need a holiday). I then like to see stuff for 3 or 4 hours and then come back to my room to read, swim or relax. Throw in a few massages here and there and that's it. I don't want to be rushed off my feet doing a million things in a day to get them done as quickly as possible so I can move on to the next destination.
I rarely comment when they as if this time frame is doable as I know we are all different.