For me the bonus of buying my Vinyl from Bandcamp is I get to download lossless digital versions of the album with zero hassle. No need to record and process the LP, just drop the files in my database.
It amuses me when the LP comes with a card that allows me to download an mp3 copy. F that! They would sell a lot more vinyl if you could download lossless audio at the same time. Bandcamp makes this happen. Hooray Bandcamp!