Hope you enjoyed your baby shower.
Nappy bags don't necessarily wear out but it can be good to have two, sometimes something spills in it and you might want to give them a good clean out and need to let one dry.

Some people like having a plain black one as their partners etc don't necessarily like taking a nice bright colourful bag if they have bubs alone... :-)

Saying all this i only have ONE and it's a plain black one, i LOVE it but the handle broke on it MONTHS ago now and i still don't have it fixed, with #2 on the way i should seriously look at getting another one.

If you don't think you will use two maybe just tell your friend your partner surprised you with one you had seen and being so far away it's hard to take back, maybe she can come with you and pick out something else you need?

There is no right or wrong answer here and i prob haven't helped but i think it can't hurt to have a spare.