An edit here to clarify:
Only the Axiom line KB has aftertouch potential. The Oxy line does not. Both have multiple KB velocity settings, however, which is what I was thinking of when I made this comparison.

I have noticed that aftertouch of any kind is hard to find in the under-$500 USD controller boards I have run across that have other features I want. For example, the Novation LE line (nice KB, but synth action, no aftertouch).