So have you bought anything?

It just depends on how good you want your experience to be. You can watch movies on a $300 laptop but the screen and speakers won't be as nice and it may not have a big hard drive to store a lot of movies. And most laptops these days do not have a DVD drive either so you'd need digital downloads of movies.

The more you spend, of course there will be nicer screens, better speakers, faster processor and graphics for things like Google Earth.

An iPad Pro will have good quality screen and speakers and it should run Google Earth well. But it's expensive for what it is, only about a 10-inch screen and when you get one with a lot of storage, say 128 GB (if they even still offer that size), it's expensive storage, unless you're okay with downloading and deleting movie and swapping them out constantly, to make it work with say a 64 GB model.

I think all of the streaming services provide a better experience with their iPad apps. than using their websites on a browser. Plus, you can download movies and shows from Netflix, Amazon Prime, Showtime Anytime apps. for offline viewing. Not sure you can do the same with the websites for those or other services.