Agree. I bought up Kayfun V2 clones a couple of years ago. Since then, I've used a couple of my previous V2 clones and left the backup stock in the boxes they came in.
I'm kinda similar... I feel like I'm already good... since 2016, I've had 4 (or more) KF V5 clones, 3-4 Caravela clones, 6 or more Infinite mods (4 SMPL and 2-3 4Nines)...those are the mechs. Still new in boxes for a rainy day (I only use 2 KF/SMPL setups on rotation).
For electronic and non-RBA (which I know aren't reliable in the long-run)... just random old Kangers, Picos, Vaporflasks, COV Mini Volts, a bunch of Melo tanks, newer Nords, etc.
Actually, I just ordered the newest KF 2021 clone last night, x2.
Haven’t bought a new RTA since 2016/17 and always wanted to try newer, smaller Kayfuns (like the lites, KF 2019, etc.); just been procrastinating and content with the V5.
Now I had a reason to get it, since I prolly can’t get any new stuff anymore. So I got 2 new KF 2021s coming.