Honestly Don, In 15 years of archery, I've never dropped anything on my bow that was heavy enough to break anything. And believe me when I say - I'm NOT careful with my bow. Borderline abusive, to be honest.

3 major incidents, none of which would have been helped if I had an expensive bow case:
[ul][*]Slid it off the roof (waxed)of my car onto the road - dented the cams and scuffed the serving.[*]Dryfire[*]Dropped it out of a treestand - 25' - broke my sights.[/ul]A bow case, to me, is beyond useless. Hell, when we drive to go bowhunting, we usually can't even use them if we wanted to, because they're so huge and bulky - they take up too much cargo space. We're already loaded down with treestands, rubbermaid tubs, boots, random junk - and possibly a deer carcass on the way home.

Mine fits in my hatch with my gear when I fly solo, but if we're rolling 2-deep - they won't fit in the hatch with all the gear or in the bed of the truck, because of the tonneau cover, tubs and stands.

The only thing they're good for, is stacking stuff on top of your bow in the garage or airline travel.

...and to answer your question - anyone who would dump $2K on an alarm system for a $10K car should be committed to an insane asylum.