UPDATE: I had another chat with another person, she said you could roll points also, and she also said you can have one card per phone #.
The only bad thing is you can't use points from one card to another.
Here's my live chat session with Trevor from Rite Aid:
BTW here's the ad for the first week of Plenti... …Continue
These are on clearance for $1.71, so an awesome deal!!!!
Hopefully they have them at your store. :)