2020, eh? No wonder why you couldn't get the new primer arm.2020 was the year
I didn't have the lee classic turret I had a lee cast aluminum turret. I even tried the primer arm from my old lee single stage and it did not fit.
I never said the lee turret sucked. I said it's limited in quality in that it will wear out pretty quickly unless your only loading 100 or 200 rounds a month. Shit loads of reloaders will agree with me on that. I out grew the lee when I started making more and more ammo on it. As far as your suggestion for cheap to fix.......I'm not that into buying parts to repair my economy model press. I barely have enough time to get to the bench to make a couple thousand rounds a month that I use...... I have zero interest in fiddling with my press to keep it running. I like my rcbs. It fits all.my needs and I'll likely never have to fix it.
The aluminum Lee turret I have no experience with, but from all I've read they suck, the cast iron one is the best and that's the one I have and it works great for when I'm doing 100 or 200 rds of pistol at a time and I've not had an issue with it.