In some respects, it is easier to live with a tube linestage or preamp than a solid state one. If you are someone who turns off your solid state linestage, it actually takes much longer for a solid state linestage to be fully warmed up and sounding its best; most tube gear is pretty much fully warmed up in less than 10 minutes. The big convenience factor with solid state is that you can leave a linestage on all of the time.
In terms of ultimate longevity, in some respects, tube gear has a longer life. It is easy to refurbish and maintain classic tube gear for decades while a lot of solid state gear is MUCH harder to find replacement transistors, ICs and op amps.
For me, the choice would come down to sonic preference and the kind of amp that the linestage/preamp will be driving. If the amp is solid state, I would be more inclined to stick with solid state for the linestage/preamp.
In terms of ultimate longevity, in some respects, tube gear has a longer life. It is easy to refurbish and maintain classic tube gear for decades while a lot of solid state gear is MUCH harder to find replacement transistors, ICs and op amps.
For me, the choice would come down to sonic preference and the kind of amp that the linestage/preamp will be driving. If the amp is solid state, I would be more inclined to stick with solid state for the linestage/preamp.