Count me in Chris.
I am currently in the USA in Florida and went to the Green Chili in St. Petersburg last Saturday for what I thought was going to be a cooking lesson. It turned out that there were 12 of us at $80 each for an hour and a half watching the chef prepare a chicken curry, a vegetable byriani, some raita and took us into the kitchen to show us the tandoor making a naan bread. It was only that my girlfriend had a voucher for $40 each that we attended, but otherwise this would have cost us $80 a piece.
As I suspected, they do not use a base sauce here but cook everything from fresh, but it did not taste like BIR as we know it, more like traditional Indian home cooking, but they have a thriving business here with food like that. I am sure if one of us were to open a BIR style restaurant over here, we would probably put the rest out of business....... it really is not that good........
So all in all, a mediocre meal, quite bland and if you do the sums, $880 for 1 and 1/2 hours demonstration....... not a bad little earner for a Saturday afternoon once the restaurant has closed from the lunchtime session and before they open for the evening one...........