I'm the first to bash a shitty racer (да простит меня
pos 
), I enjoy racing games...but my reason for collecting so many is there are so few good ones in truth, at least without a steering wheel setup.
I'm a J/RPG addict in really, but I doubt I'd be finding any of those around here and I wouldn't ask on my wl since I basically buy them (at AAA prices) long before it would be sane to ask for one lol.
Shin-Mega, FF, Tales/Trails Of, Ys, Star Ocean...those are my main series. I loved many more that died out like suikoden etc etc.
I don't follow enough small titles to even try to grab them or list them, I do if I come across one in a GA though, even RPGMaker games.
EDIT:
At one point I went through every gala racer you could win in a day and gave my opinion as to what people might like and should definitely avoid.
Two other small notes:
Pos bombed me with so many racers it was inevitable.
And you can also send your shitty ones my way for evaluation purposes