I bought my RS20 used - it may have been the 2nd ham-related purchase I ever made.
12 years later, it's still chugging along...although on bench duty now. I'd snap up the RS35 in a heartbeat if I were in your situation.
Yep, they are worth the investment. A power supply was one of the first things I bought too. I have had my RS-70A for 9 years now and it was used when I got it. Hell, my grandfather has been using his RS-35A for likely my entire lifespan. Lol.
"A night sky full of cries. Hearts filled with lies. The contract: is it worth the price?"