I have a neighbor that's collects anvils, he has over 150 of them. Is this a collection or an obsession? I'm just glad I got mine before the craziness kicked in.
Anyway, before you spend any money on an anvil, test the rebound. I have a steel ball I bought from Harry Epstein. A good anvil will give you almost 100% rebound.
https://www.harryepstein.com/index.php/31-32-chrome-steel-balls.html
I know of collectors who have over 1,000 anvils, so your neighbor isn't too bad.
I've only owned a couple of dozen anvils, but only the very best will give well over 90% rebound, so when people say they're getting nearly 100% rebound, especially from a vintage anvil, it tells me they aren't checking them correctly.
Most really good anvils will realistically be in the 70-80% range if someone actually measures the rebound with a ruler and a drop from exactly 10 inches. Right now I've got fine examples of Peter Wright, Hay-Budden, Trenton, Arm & Hammer, Fisher, Kohlswa and Refflinghaus on hand. I've also owned Mousehole and Vulcan brands in the past, as well as forged on, or tested the rebound on other brands like Columbian, Wilkinson, Soderfors and Pedinghaus.
Out of all of those only the Refflinghaus is clearly over 90%.
What I see people do all the time is drop a ball bearing, catch it and say "yep, almost 100% rebound" because they didn't have to move their hand too much...but have no idea exactly how much their hand moved, or exactly how high they dropped it from, etc.

