Speedplay frog equivalent?

WELL, I’ve been riding speedplay frogs on everything except my roadie (which has zeros) for a few years. They pretty well solved all knee issues I had. The float is awesome.

BUT, I’m getting sick of having to drop $50 on a new set of cleats every few months. They’re a shit design and wear too easily and the replacement price is annoyingly high.

SO, I’m wondering what alternatives there are for a recessed cleat MTB-style pedal that has a similar float? What do you other dodgy knee folk use? Speedplay now make the Syzr, but it has only 10 degree float (not 20 with the frog) and looks to be just an expensive Shimano SPD.

Get new knees