Yeah, I think that's my problem. The Assioma Duo is only $650, for true left right, pedal based, rechargeable, easy install and swap, and getting really good reviews. That's the one I've been targeting most likely.
I'm not going to find much used for under $300. And at that point, it just doesn't seem worth saving the money to just change later.
I have the go-ahead from my wife for my birthday in early August if I continue riding until then, so I should probably just wait until then and get what I really want. I'm just impatient and like gear.