I would say in terms of vinyl 45s I am now a DJ only. Simply because I only buy records to DJ with, in other words, I don't collect records.
However, in terms of collecting the music I love on any format, I'm as bad as anyone else, just I collect CDs.
It took me a long time to come to this way of thinking though, but the realisation that almost anything I want to listen to is available on CD (Even if it's from a mate), and I very rarely play records at home (because I can't be bothered getting up every three minutes), meant that money I spent on records for my collection, that then sat in a box never played, could be spent on more expensive records for my DJ box.
So, to DJ with, I buy records, and when I buy something new for the play box, I sell something out of the play box to pay for it.
To listen to at home, I buy CDs (Over 2000 at the last count)
I would say though that it took me a long time to break the collecting habit, and on several occasions have gone through a sort of relapse and started collecting odd things again. At one point I decided to collect look-alike bootlegs. Then when I'd bought a few thought what the hell am I doing ? I would never DJ with them, I would never play them at home, why was I buying them !
I have every respect for collectors though. I would love to have the time and money and devotion that they have in collecting records. I'ts just that when I came to make the decision to DJ or collect because I couldn't do both, DJing won for me. I'd also like to think that I made the right decision because because I've averaged over 50 bookings a year for the last four years, and I'm sure wouldn't have managed that many if I hadn't concentrated my money at my DJ box.