I had a lady explain to me when I was new at this.... and have heard it more than once since then. "It is MY body, and I get to decide what goes inside it!" Translation...condoms come in a wide variety, lubed, not-lubed, diff brands, diff materials, flavored, thick, thin, big, not so big, etc. Not to mention "expired". A lady is very likely to have her preferred brand and style. Some are not especially concerned (nearly any condom that does the job will do), but some are.
I have them with me, but it is highly unlikely that they will emerge from the hiding place... we shall be using the ones she keeps in stock; it is so fun getting "sized up" too!