thoughts on phono stage


I am considering upgrading my phono stage, which is currently a Sim 310.  I listen almost exclusively to vinyl (mostly acoustic jazz).  The other components include Hegel H30, PrimaLuna Dialogue Premium, Magico S3 mkI and RP8 (with Apheta cart).  Right now, my possible list includes Sim 610, Sutherland Duo, Pass Labs XP-25 and Lehmann Silver.  My stretch budget might get me up to $6,000 and I will be looking for something used.  Any input will be most appreciated.  My options to audition locally are very limited..............


vinylbliss
glennewdick - if you are sticking with a tube-based phono stage, have you considered the Modwright ph150?
If I was in your shoes I'd take a serious look at this
https://www.audiogon.com/listings/lis92i19-thoress-phono-enhancer-german-made-phonostage-phono

Obviously a ARC Ref2SE Phono is easily within your budget (I know having just had to let mine go at <$6K)
Herron Audio VTPH-2. The Herron is a vacuum tube design and plays well above its price point.

Chuck 
secretguy - thanks for your response; you raise several interesting issues.  Are phono stages "less important" to the ultimate sound of an analogue system than the other components?  Is a high-end (i.e.more expensive) phono stage really no better than an entry-level one?  Is there a general rule of thumb that your phono stage should cost no more than a certain % of your pre-amp?