If you look at the original White Paper, or perhaps it was an early discussion on the BCT forum, Evan makes the point that X11 is designed to be ASIC resistant in the short term, that he intended Dash to follow a similar cycle to Bitcoin and that ASIC's would eventually be developed. The idea was that ASIC's would not be available immediately so as to have more even distribution, but the development of ASIC's eventually was expected.
I think that for any algorithm implemented ASIC's are bound to be developed once it becomes profitable to do so, no need to be playing catch up; ASIC's are a good development for infrastructure maturation.
Pablo.