[Hatredcopter]

I would really try and make it to Kyoto, whether by Shinkansen or bus, it'll be worth it. 20 days is much too long to spend just around the Tokyo area. If you're around Kyoto, you can also have possible trips to Nara and Osaka, both of which are relatively inexpensive to reach from Kyoto. It'd be a shame to miss out on this part of Japan!