Niseko is very commercial and mostly Australian these days. Probably a large Chinese customer base now too.

But there is a lot more skiing in Hokkaido if you like more natrual terrain and less crowded skiing. A place that I wanted to go to was Asahidake. There are other places like Kurodake, which also gives you the steepness that you normally find on Hokkaido. This can be described as slackcountry.

To get there you can also fly to Asahikawa from Haneda rather than going to Chitose. Asahikawa is closer to Furano also and the aforementioned places. The snow will also be better in central Hokkaido.

You can also ski on Honshu (like Hakuba) where the mountains are actually bigger but the only problem is that the conditions can be variable. It can switch from snow to rain. If you go there for 1-2 weeks then you will of course get some good skiing and try to target late Jan -early Feb to reduce rain chances. For someone in Tokyo then you go when the conditions are good, but that's not viable if you are coming from afar.

p.s. You are able pay a lot less than $200 a night if you avoid Niseko.