One is 8.5/10 smoothness, other 9.5/10 smoothness. Neither has string vibe with play. Threads and bearing seats are still pristine so durability wise they’re still tip top to use.
Id say around $420-550 depending on color but also people are down to spend a lot since they’re hard to come by. I paid $420 for mine recently in this raw polished version mint but my gold one I used to have I paid $530ish