They were, the first 1200's were sold without tone arms in the hi-fi specialist magazines as users often prefered to add their own tone arms.
The most important issue with recording vinyl is the LEVEL. Recording through a DJ mixer is also a bad thing IMO, mixers are meant to colour the sound and when you play back your recorded mixes back through the same DJ mixer you used to record them then its being given double colour.
The problem with the needles as i see it is that the depth of the cut on modern dance music records is pretty deep and as such the audiophile needles in the hi-fi scene were not designed in mind with that level of vibration. On the other hand DJ needles are not really designed to bring back high levels of quality (they're pretty close though). Of course all this is much of a muchness Decent Q DJ needles should be fine to record your music, but its the signal path thats the killer.
Of course ya stuck between a rock and a hard place in terms of RCA pre-amps. DJ mixers are the best place to find em but some are of course better than others. I find the pioneer mixers quite transparent but prefer the sound of my vestax.. warmer fuller.
Anyway....[/RAMBLE]