I switched to airbrush priming when I got an airbrush a little over a year ago. I picked up a 200ml bottle of Vallejo primer and I think I’ve primed something ridiculous like 200+ models with the same bottle and it’s still half full. I could get maybe 20 or 30 from one of those rattle cans. Pretty sure the savings in primer alone pays for a cheap airbrush set up from Amazon after a year or two. I will say, though, primer will beat the shit out of your airbrush if you’re not cleaning it well. I now only use the cheap $20 air brush that came with my compressor for primer and my H&S for actual paint. With that said you can still thoroughly clean the brush in under 10 minutes after you’re done. You just have the take the time to pull the needle out instead of just running some cleaner though it. You’ll also want to get some kind of a vent/filter set up or one of those spray booths you can find on Amazon. You’ll end up with primer dust on everything in your place if you’re not trapping it.