When the tulip bubble popped it went to $0 pretty quick. Experts had been warning this crypto stuff was all hype / BS. I don't see $0 but I see $1000 or so in a few more months. Start investing again when that happens.
You cannot compare tulips to ponzi units. Tulips have intrinsic value, ponzi units don't. Bitcoins are units in ponzi and one can return their investments in bitcoin only if someone joins the ponzi. In tulip mania you invested in tulips and thus, you have something by definition.