Lack of ABS is definitely not a deal breaker - in fact is should be a deal maker.
People get very worked up about ABS but I don't see why, there is no high quality definitive research that concludes that ABS on a bike makes it significantly safer - because of this people go by their limited personal experience which by its nature is extremely subjective.
My personal view is that given the choice I would always go for a bike without ABS - the dynamics of a bike in any particular situation are far too complex to think that something as crude as ABS is always a good thing.
I had an off last September caused by a middle aged American in a hire car - he turned across my path with absolutely no notice whatsoever, luckily I was going slowly because it was rush hour. I instinctively braked hard when I saw the car turn in front of me, a few yards from the car the bike went down (locked front wheel) and slid the last few yards and hardly touched the car - if the bike had been fitted with ABS it would have stayed upright, 'ran-on' and hit the car squarely in the passenger door with me still on board which would have been far more damaging to me and the bike - as it was the only damage the bike received was cosmetic, mirror, lever, screen and lightly scratched pannier lids and crash bars. I got away with a bruised hip (from bumping over a cats eye).
I am sure that ABS works in some situations, but I suspect that in those situations the rider could have done something about it anyway - so I remain unconvinced by the whole compulsory ABS thing.