Tube amp- bang for the buck of new breed


I would like to add another tube amp to my system since the one I currently have is 50 years old and only 20 watts. Of the new breed of tube power, and heck why not, solid state amplification out there, what do you guys think is the best bang for the buck right now ? Budget you said ? Hmm, 2k to begin with.
128x128audiogabby
PrimaLuna.It would help to know the speakers being used-impedance and efficiency.Would look at 5 or 7s.
Legacy Classic. They're twelve years old and I have no plans to upgrade them. Yes, the Primaluna Dialogue 5 is on my sight but there are no reviews out there yet. Btw, I used to own the Dialogue 2, nice integrated.