Quoted 300$ for mobo replacement, fair?

Posted by busangirl97@reddit | buildapc | View on Reddit | 31 comments

I wanna know if I made the right decision here.
My secondhand pc that I bought from marketplace died on me randomly and I know enough to be able to build one since I built my gf’s but since hers was ddr5 I couldnt test which parts broke down on mine which I suspected was the mobo.
I took it to a shop and was charged $40 for diagnostics which I thought was reasonably priced and fast forward 2.5 months later he diagnosed that the mobo was the issue and he tried to source one but it was doa on arrival.
So my only option was to source my own or upgrade and I found one on marketplace for 160 and told the shop that I could bring one in and I’ll pay for the assembly fee but when I went to drop it off he quoted me $300?? I laughed and was genuinely shocked and asked how could it possibly cost that much.
He didn’t really give a clear answer and we negotiated down to 220 and even still I did not feel comfortable paying anywhere near that, as well as he’d have me wait till next month since he was busy etc and I ended up just taking my pc back home. Is the price justifiable at