Everyone is anticipating the Braze kit which may or may not come out depending on Scott's personal matters taking priority (makes sense). He has trickled out a few more Beta units which means we could see them any day.
Asteroids was always easy to find but I think games that are not crap are generally getting harder to find as the Ops shut down, and more machines are mamed or multi'd.
Thankfully I was able to get an UR and a mini deluxe reasonable last year.
If someone actually starts making an XY kit to bolt onto a standard TUBE we will see a few nice repro XY games or an FPGA vector emulator PCB with VGA out.
Michael