To clarify, I have absolutely no problems hiring a reservist. I've even stated to this guy that if he ever gets deployed again, he will always have a job with me as long as I can pay him.
Basically I was just rationally thinking out-loud why other companies wouldn't hire a reservist.
As for tax credits, it don't matter, but sure would be nice.
I'm pretty sure that there is credits out there already for new-hires in general. I'll have to talk with my accountant at the end of the year and see how that works.