The 1210 mk7 was the last off their production line to my knowledge back end of 2010. Technology won't have advanced too much for analogue based equipment in those 3 years, but parts will no doubt have got cheaper. The big tech companies tend to pump their R&D budgets into digital gear these days so for me, although it sounds great on paper to have all your gizmos in one place, if you're going to use these type of decks anywhere other than your living room, i'd stick with tried and trusted i.e. Technics 1210 or 1200's
Pre-amps and USB ports technology won't be expensive, but as with everything theres a scale on quality and price. No matter what, your sound quality and output is only as good as its weakest part. These decks could be the muts danglies, but is the pre-amp is shite then what's the point.
It's only my personal opinion, but analogue sound works better with individual specialist top quality parts. Digital's a bit different, as i recently found out when searching for a sound bar for my TV (thanks for the help on that one Chalky, got a belter in the end)!