Personally haven't bought a jersey since I got ST Pro Bowl. Partly because I felt like a jinx (3 years in a row I bought named jerseys and each time the guy was gone the following season).
I may get a t-shirt if the new name isn't embarrassing, but I'm holding off on a new jersey until I see some product on the field that feels like its worth it (probably a Scary jersey assuming we don't bungle extending him).