Hi-ten has a lower yield strength than chromoly, so for the hi-ten fork blades to resist permanent bending in a collision for example, the wall thickness for blades of similar outside dimensions would have to be thicker (and therefore heavier) for a hi-ten fork than for a chromoly fork. Also, because the hi-ten blades have thicker walls, the fork won't have the flexibility and resilience of a chromoly fork.

IMHO, for $60 it would be a worthwhile upgrade.