Snap caps are a good idea for dry fire practice, which would be repeated use. If you are just doing a funtion check, dont worry about it. If you are sitting in the basement watching television and killing all the BGs on CSPAN, put one in.
As I am always looking for my "next" 1911, I keep one in my truck to take into the gunshops. No better way to get a feel for a trigger than pulling it, and we dont want to offend the keepers of the kingdom. My 2 cents, anyway.
\"Fortes et strenuos etiam contra fortunam insistere, timidos et ignoros ad desperationem formidine properare.\"
(The brave and bold persist even against fortune; the timid and cowardly rush to despair through fear alone.)