It is high. But you already know that, or you wouldn't be here asking.
If it's "excessive", only you can answer.
Do you get $200 of enjoyment of it? If you feel like you do, keep going. If not, stop.
Personally, I spend almost that on some hidrobike classes. And would pay more, if needed. I go 5x/week for 2 years now, and the enjoyment and the health benefits far outweights the cost, for me. All my blood tests came on the 'optimal' range after I started, lost some fat, got some muscle. Can't complain. Of course, all my retirement accounts are fully funded, some money saved every month and zero debt. If your finances are in order and your hair is not on fire, spend on whatever makes you happy.