Yeah, that's what I was wondering. Most of the criticisms of high-level play come from 5e players, which is fair, since it's pretty much not supported. But I also remember the high-level books from my 3e days!

I haven't had personal experience with it, but I know BECMI D&D supported it. I think the lower tiers (Basic and Expert) are more popular than the latter (Companion, Master, Immortal), but still.