Given the drawbacks of mounts, not really. They're pretty fragile things.
Though the decision there is "do I want a full-attacking scout". Some people will say yes, some people will say no. If you say no, then you won't like mounted archery. If you say yes, then that's one of the few ways to get multiple attacks off, and removing it really limits the class.
'course, I'm also one of the few that thinks the Scout was fine without disable device; but my GM is cool enough to thoroughly describe traps and let us be creative about getting around them.