Well,my approach is to "attempt" to acquire the best possible component choice to fit my sonic tastes,and pocketbook....
Then,as time goes by(if I really like the component)I see if it can be updated,to further improve something I already know is excellent,and works well,in my set-up!
I have done this with much of my stuff....but in the case of Rowland,I have been very successful!!
Mainly because Jeff is a superb fellow,who supports his products.No matter what the vintage!!
I have a two chassis 8T amp...Originally with the battery P/S...I've had the amp updated three times,by Jeff.He is very reasonable in the cost to update,based on the sonic return,IMO!
The latest update was to have two seperate "power factor correction modules" placed in the second chassis.No longer the battery anymore,which though very quiet,was slightly defficient in dynamics(but I still was quite satisfied)......
NO contest!!....The new P/S update absolutely blows away my previous battery P/S....Also,actually,the battery P/S has been gone for a few years.
I had originally had a "single" P/S module put in the second chassis(to replace the battery,and "it" was definitely quieter,if you can believe that,and "way more" dynamic),by Jeff(one of the audio Gods)....Even this basic P/S "single seperate module"(I now have a "dual module" configuration) significantly outperformed the battery,but the battery was "much better" than many would think....
Because I have a friend,with the single chassis 8t,who's system is almost identical to mine(lucky for me,in the long run)...I always felt the battery was quieter,and better able to allow depth/tone to develop.Yet his amp definitely could swing more dynamic punch....Not anymore.
This NEW double mudule,that I now have,is SO good,that even my "only tubes can do it" friends are "amazed"!!...THAT is BIG,since these guys truly believe SS is a non factor,in music....Of course I am laughing!..
Why,because though I have had superb tube set-ups in the past(and love tube sound),I now "know for certain" that the magic can be had,without the "significant" weakness of excessive heat!!...
My amp runs almost "cold",sounds embarrassingly great(if you think "only" tubes can do "it"),looks like a million bucks(it wasn't cheap),and keeps my room nice and comfy.
Of course,you have the "way relaxed personality,but amazingly knowledgable" back up of Jeff Rowland,here.So as I see it,my investment will keep me happy for a LONG time!
Just some thoughts.