there are a few pieces of gear which have absolutely no equal and for which it's hard to accept a substitute once you've played with the real deal: la-2a, pultec, space echo. there are devices which come close, so if you're happy with 'close' than buy the ua reissue.
ime, the old la-2a's are simply magical, and they're not easy to come by. they will do things to the human voice, or a kick, or bass, or acoustics, that nothing else can do. the re-issue will indeed put a big smile on your face, but the original will make your soul warm all over.
they're also dead easy to repair and/or upgrade. i haven't shopped for the old ones lately so i've no idea if your price is in line with the market. if it is, and you can afford it, just do it. resale will not be a problem.
gregoire
del ubik