Welcome to the forum
Sorry to hear of the problems you're having with your PT. Mine is 2 years older and with about 35,000 more miles, but everything works on my PT, it's never been in an accident, and I plan on enjoying it for at least another 5 years, or longer.
Have you had the timing belt work done on yours yet? If not, it should have been done around the 100,000 mile mark and you're facing about a $1000-$1500 bill to fix that and related components.
Although I hate to see any vehicle go to the scrap yard, I don't think that the PT is any more problematic than any other vehicle. I think all vehicles have their quirks, the key is to stay on top of things, and do some preventative maintenance before things break. But I wish you luck on whatever you choose.