Some bad analogies there, as there are two different issues under discussion. Obviously whether you spend every day or once a month, there's no issue as to _when_ you smoke those cigars. The other issue is whether you feel like you've got the right to smoke an "outside" cigar based on your past support of the store.
It may be arrogant of me, but I feel like I've earned the option of smoking an outside cigar every once in a while. Anything I get outside of the B&M is few and far between, anyhow. If I won the super bowl pool and had a bunch of Anejo to smoke, I wouldn't feel comfortable going in the shop and smoking just those. There's a number (like 1 or 2 a month) that I'd be comfortable with and anything over would be taking advantage.
That number is zero for some folks and that's cool, too.
-John