That Ny Hotel looks ok for the money, we found we were leaving our room around 8am and not returning until 11pm at the earliest each day anyway. I assume you're going for one of the private rooms for that $$$. For transport, food & activities I would allow US$250 per day to make sure you are comfortable. Transport is pretty cheap, from memory the bus is $2 per ride. Food - well that can vary depending on your style & taste & attractions can too. Some days you might spend more some days a bit less. I've heard the same about Rockefeller Centre but I really wanted to go to the top of the Empire State cause it's in so many movies etc. It took us about 45 mins to get from the front door to the top and I don't think it was a particularly busy time/day either. Yay for adding the Circle Line cruise.

Sounds like a good spot you've found in LA too, we used public transport and found it efficient and reasonably priced too.