Thanks a lot to everyone for the detailed responses. This is great advise. I had no idea that repairing older av receiver model is difficult and hard to find parts. How are these AV receivers different from vintage stereo units like preamp/power amp separates? I had my vintage preamp and power amp re-capped last year. How is that different from re-capping surround receivers?
The guy selling the VSX-94 TXH said the MSRP on the unit was $2000 back in 2008, does that mean it is high end for that year? Expensive units seem to have low THD like under 0.1% for entire 20 hz to 2k hz freq response. I don't know if that something to consider for superior sound quality.
also some units they post ad saying the unit has huge toroidal transformer, I believe that is something worth considering right?
Thanks again to everyone for the feedback.