The only person who has used the word "rape" is 2TurboImports. DSM guys are never going to be big dyno users because it's too cheap and easy to tune on the street- it's one of the best things about DSM. The thread in the dsm forum has had very little response even though the price is in the reasonable range. I myself would only consider running on a dyno once I was close to completion of the engine mods I want to do, and then only so I could get a power number to brag about.

The Miami dyno still exists as far as I know. They've done DSM dyno days at 75 bucks for two or three pulls (can't remember which), I read about it one of the few times I went on one of the Miami boards. 100 dollars is a reasonable fee considering extra expense and setup time.
As far as having another AWD dyno in town, the demand might be there... but I think that the dsm guys are going to keep doing their own thing apart from any shops, the WRX guys are mostly happy at Mastro (since y'all are blingin anyway with those new cars and payments and jobs and all and can afford it ) and... there's nobody else who needs an AWD dyno.