I don't understand why games cost the same now as they did 20 years ago considering inflationary pressures. Games today often have a lot more content these days too. Considering production values have gone up a lot, I'm surprised these game companies can stay afloat.
They're moving MANY more units now than they ever were 20 years ago.
Also, with console games at $60, I find that I very rarely buy them and tend to stick with smaller purchases on XBLA. $50 is definitely more palatable.