I have parted out countless VWs over the years... from type 1 beetles to Mk5s....every car has a value, and when the repairs exceed that, part out is inevitable. Be happy there are people out there who take the time to not only part these out but determine value, advertise, and haggle with buyers. Most of said buyers who gripe about price have no clue what it takes to do all of the above, and the dismantling part is the hardest of all when dealing with old brittle rusty stuff. Take the time to disconnect wiring or carefully remove fittings and flanges, and getting a fair price is difficult. Buy some junk yard stuff and see what I mean. Cut wiring harnesses, cut this, cut that. Whatever saves time.
TLDR... Good, used, tested parts aren't cheap!