I'm in exactly this place right now.

I have both the T5 and a PSRS970. I've never bveen able to get the T5 road ready enough as far as how I want/need it to sound. I found setting up the board after purchase to be complicated and after months of working on I gave up.

OTOH, I've loved playing the S970 which was a breeze setting up and sounds fantastic live.

Now, to the thread's main question...I've had the S970 long enough and put a LOT of live gig miles on it that accessing replacement parts is an issue. At 8 years old, should something major die on me, the board might be disposable.

Pi0cking up a new PSRSX900/700 - with me being 62 and still- gigging 350+ times a year - would give me some peace or mind repair wise and we're not that far down the road from the psrS970 that the whole OS player interface would've changed that radically yet...