I stayed here at Hakone; 2 day 1 night. 300USD
It was just not worth it just to go and visit. We took the train, did the sea tour etc. Not really worth to do it under 1 day. The Hakone train ride WITHIN Hakone was 1.5 hrs. Then you do the site seeing. FYI, it's often cold + raining + foggy, so do not expect super fantastic views all yr round. Just setting proper expectations.
I stayed @ Hakone Pax Yoshino
1) GF wanted private hot spring tub in our own suite. They of course have public hot spring.
For premium
2) it had 2 beds + tatami

3) Stay included a 6 course Kaiseki (懐石) or kaiseki-ryōri (懐石料理); traditional multi-course Japanese dinner. Super epic.

4) liquor store was easy 15 min walk.
5) this was morning breakfast buffet
It's a couples location destination, lot of sex, lot of drinking, touristy shit was an extra, let's just put it that way.