Ornstein Jane I'd say tonebase was worth it with you having captured some quality recordings on the acoustic, and also spending time among other pianists. Would you do it again or attend other events? I was aware of Tonebase during what I'd call their era of highest reach with Ben Laude (getting tons of recommendations in Videos to Watch Next on youtube etc) but hadn't seen too much after he left in 2024. But it sounds like there's something thriving there, a pianist on youtube/PianoWorld forums MarcPlays also sounds like he had a great experience, mentioning he'd just got into a challenge learning the Chopin torrent etude.
The two in-person Tonebase events I attended were open to everybody willing to pay, not just to Tonebase members.
I really enjoyed both events.
I work as a contractor for a chain of community health centers. Last winter, the Informatics Director asked whether I'd be disappearing again this summer to Vermont and I told him I wouldn't. So that limited my options. When I saw the shorter 4-day possibility for their "intensive" in Los Angeles, I decided to go to it.
The pianos at Colburn in L.A. were in better shape than those at Adamant in Vermont. But Colburn was limited to certain sign-up hours during the day, whereas Adamant we could sign up for extra hours and play until 9PM.
I live in a hick town in California, so getting to Adamant took several plane changes each way. I decided to visit a friend in D.C., so altogether that meant taking 3 weeks unpaid leave from my contracting work. Plus air fare, a few nights of hotel stay on either end of the Adamant time, and the money for the camp itself. So it wound up being rather costly. But for me to drag myself cross-country, I'd want to do the full 2-week session.
This year, Tonebase raised the price of the piano camp by about $1k (to $4,500 for the two-week session). Whereas I could more easily take time from work to do the L.A. "intensive" for a half session (4 days for $1600). But the prices are a bit different because Adamant includes lodging and board, L.A. does not. I decided to baby myself and splurge for the adjoining Omni hotel in L.A.. (Which charges $65 a day for parking. On top of the $200+ per night room charge).
But I'm 78 and don't have any responsibilities, so I don't mind indulging myself a bit.
The rest of the Tonebase stuff online I've been using less lately. There were several videos on the site that I found quite valuable. Boris Giltburg's lesson on Rachmaninoff Op. 32, No. 5 was very good. I enjoyed Noah's on Beethoven's Op. 111. I have no idea how many times I've rewatched Garrick Ohlsson's lesson on the Barcarolle. (Having 9 minutes at the L.A. "intensive" to ask Garrick about a section of the Barcarolle was definitely a high point of the trip.)
I miss having Ben's energy on Tonebase. There seem to be less new piano videos that previously, but I may be being confused because there were already a number of videos available when I joined.
They offer a number of online things such as the challenge you mention, or paid online tutoring, but I've not participated.
So ... to be determined. If there's a chance at a few days on nice pianos next year, I may very well indulge again.