I’ve also had tube gear for about 30 years and never needed a tube tester. Save the money on a tester and just buy some extra tube sets. Input tubes generally last a very long time and will make the most difference in most tube amps. I recently had an integrated amp that the tube rectifier made a big difference as it allows more or less current to the amp which made a big difference sonically.
So listen to what most people are saying here and save the money on a tube tester and just get extra tubes.
So listen to what most people are saying here and save the money on a tube tester and just get extra tubes.