For myself, it'd be a good idea. I mail a letter about once a year. It'd be kinda nice to buy $10 worth, stick 'em in my desk, and not worry if they're still honored. I think its 42c, right?
44c currently
Pretty much the same deal with me. I use maybe 3 a year, other than that, im usually shipping something Priority with oddball sizes and weights, so the FC stamp doesnt really come into play.
Reason I asked the ? in the first place, was because I bought a roll of 100 stamps off ebay for 39 bucks shipped, so 39c each for the forever ones. Wont ever have to worry about buying stamps again, unless of course something causes them to renig on their deal.
Just nice to have em if I need to mail something, or the gf has some bullshit papers to mail to her aunt in Cali. Its there....boom, no worries about picking up a stamp or wondering if yours are still good.
Of course, if a FC stamp shoots up to say 4.00 each, I could make myself a nice hefty profit reselling them. I'll be chicken rich!!