Solid State Pre-Amp: OK to Use With Tube Amp?

I know that the two can be used together, but would like to know what you recommend.
I have a PS Audio GCPH pre-amp and an old NAD 3155 integrated amp. The recent addition of the pre-amp has made a great improvement in the system (anyone would notice it). But if I were to upgrade the amp, which way should I go? Tube or Solid State?
I have a Clearaudio Innovation Compact TT on which a Vector 3 tonearm is presently being mounted, Mark Levison speaker wire, & Magneplanar 1 speakers.
Budget for the amp would be $1000 and used would be OK. There was a GOLDEN TUBE AUDIO GTA SE-40 TUBE AMP for sale here yesterday for $650 (or was it $850?). It's gone today, but that is the sort of tube amp in which I might be interested.