i am looking at purchasing a HX from a second hand party, the unit is barely used almost new.I am wondering if this is a good idea to buy a used unit. its a fairly good price, probably 30% less than a new one from einscan.Should i wait? is there new versions coming anytime soon that i may regret buying now?what about buying a second hand unit, any drawbacks or bad experiences customers have had with einscan because they didn't buy it direct from them? warranty issues? etc...just looking for some general opinions on the scenario.thanks