Seriously, you can walk a mech trigger on the Crossover. The mech function is nearly as fast as electro, you're just working without eyes.
But yeah, an Axe or Etek is a great marker, and used prices for those vs. a Crossover is going to be the same price point. It's really just going to come down to user preference at that point.
(I love the Crossover, but if I could do it all over again I'd be hard pressed not to buy an Axe instead)