New or used tube amp for $1,200


I'm considering Jolida 502p but was wondering if a used amp would be a better choice. I see that PrimaLuna and others (all used) are in this price range. I know nothing about tubes and noticed PrimaLuna is auto biasing. Is that useful? The rest of the system: JM Labs Daline 3.1, Jolida 5t preamp, Moon 100d Dac and Airport Express. Thanks very much for any advice.
hugo1
A much smarter purchase would be a used pair of Quicksilver 90 watt monos.
At that price point you can get a NEW great sounding amp from Jim Nicholls at JWN amps. All his amps are autobiasing and accept virtually and type power tube. I seriously doubt you'll do any better used
Jim Nicholls, JWN amps? Never heard of him. Will he be there when you need service? I did find an expired ad for a 50 watt stereo amp that sold for $2100 new, but nobody bought it. I guess JWN doesn't have very good resale. How do you compare that with 90 watt monos that are built like a tank with point to point wiring from a company known for quality and first rate customer service?