I am Select and got 100 points + 25 point bonus on a $10 ticket.
As for the "high rollers" in the NEC - I guess I'm one of those so-called high rollers, accruing over 15,000 points in 2004. I certainly don't feel the love. Especially when the trains are late pretty often.
Amtrak does, in fact, make money on the Acela routes. Especially since they're usually near sold out, despite the ticket price rising each year since it's introduction in 2000. It's a shame that they're way too overpowered for the infrastructure they're wedged into.