Is it worth the price? Is it far superiror to the PTI? I am trying to decide b/t the two -- i like a change purse and a checkbook holder all combines, so i'm thinking those are my two options. I see PTIs on eBay all the time, but not zippys -- I of course I want damier, so that will be even more rare. So if you have one, what do you think of it? Is it that much better than the PTI? thanks!