[ He tries not to think about "a good motivator" in relation to that earlier line, focusing instead on the original intention behind all of this. The letters are keeping his mental state from deteriorating. That's a good thing. ]

Whenever you have the coupons for it. [ He makes a small gesture. ] Of course, you still have the option to bypass the coupon exchange entirely and use the mail room for free like everyone else. I don't think the risk--or the delay--is what you're imagining it to be.