"So yes, budget doesn't necessary means crap. But in the PC world generally speaking budget titles are junk."
I've played a fair few budget titles on the PC that were awesome games. However, those games were ALWAYS budget games to begin with.
You can't take a full AAA game and then later down the road go budget with the series. That's like a guy who drives a Porsche his whole life, then suddenly gets saddled with a Chevy Cavalier. Odds are, it's not going to seem quite as satisfying.