We wanted to have a 10 or 15 year renewal period because we have members who do not have credit cards and it is a process for them to get a check and send in an application renewal form so to make their life easier we thought of the idea of having a longer renewal period option. Not a lifetime membership but close for some people.

Coming from a background in S/W development I am curious why this option has to be a dropdown and not a simple variable you can use to enter your own number of years?