5 years ? Why not 10 years ? Why not 15 years ?
In my case, I would vote ONLY if a reason is provided for what has been suggested, failing which it is my "suggestion", that such a suggestion lacks any real value.
However, I will give my reason for what I've "suggested" above :-
Renewing Jr.VIP membership is not a big deal, a simple contact with support and a few clicks, it's done and such a task once a year is quite simple.
I am imagining if I am the owner of a business or a forum, would I like to lock my membership prices for 5 years ? No, I would not prefer to do that and I doubt if any membershio based business or forum does that either, because markets are quite dynamic nowadays, we are no longer in the 70's or 80's.