[billybek]

Get a new fridge at that price.
There is probably a few reasons why the appliance guy wants to put in a new compressor.
R134a uses polyoester oil and it is highly hygroscopic. Hard to get moisture out unless the system is completely flushed and a new oil charge installed. The oil charge is in the new compressor. Since the old one pumped out (some/most/all/none?) running with a broken discharge line he would have to add oil. Too much = bad = Too little
There will probably be no warranty if you choose to repair the line and install a new pencil drier.
I am not saying that it isn't doable. If it were mine I would fix it and see what happens. If I had to pay someone to fix it, I would probably get a new fridge....
Ask him how much it would be to repair the line and change the drier.
Nasty that it failed so soon. I would contact the manufacturer and see what they have to say about it.