Yes, that is correct. There are different line items that VAC will pay for.
Basically, if you're given a mobility aid in the Canadian Armed Forces, it's expected that they'll cover it, but they won't. They'll only cover the items that they actually pay for, so instead of paying $100 for a couple of brakes to be adjusted and to be repaired, they would go out and buy a $7,000 or $8,000 new wheelchair.