Don't do anything hasty. It sounds like you're in a hacked off mood and nobody ever makes good decisions when they're hacked off. Especially when they're tight for money as well.
I sold a monster of an A1200 system a few years back for just that very reason - my MiamiDX config crashed (for some reason it had a habit of doing that, every once in a while) and I was having trouble getting it working again, and at the same time I was going through a rough patch with my finances.
I sold the miggy. I got a fantasic price for her, but if you ask me now whether I think it was a good idea?
NO. I wish I hadn't sold my old miggy that I spent years perfecting into the absolute flagship of Amiga1200 setups.
I wish I still had my old Amiga.
So, my advice to you is; take a break from it and leave it be for a while. Then, if you still want to sell her, your decision will be made. But don't make the decision while you're in a foul mood!
AH