Well, that depends whether you want to simply order something from a store, or you're willing to put some effort into it.
My Raptor K1, for example, isn't flimsy per se (esp. compared to a new stock G80-3000, which is wider and thus allows more PCB flex, unless modded), but it's not as solid as a keyboard with a steel plate. It doesn't really matter as long as you're typing and not raging or smashing people's faces with the keyboard, but it does influence things like sound a bit, and personally, I find the sound of the cherry preferable.
I don't think you can just get the raptor brand new from any store, though, it's more of a "great finds" subforum subject.