I'm not sure on the paypal issue.
I havn't had much use for it, so I never investigated it much.
I see a lot of personal sites ad it to thier layout just to see if someone will click on it and "donate" some money to them.
If that really worked, we'd all be rich
If SM's already got a merch account, why do it?
Unless it's easy to use? dunno....
Israel "Izzy" Long
Motion and Title Design for Broadcast-Film-DS
izzylong.com