I kind of like them trickling in. I very rarely use the post any more. It's fun to look forward to getting the mail each day wondering what I'll get next. I've gotten 5 so far. My only regret is that I didn't go ahead and do "all". Printing more cards once I got going would have taken minimal time, and postage for post cards in the US, even international, is minimal. From the post marks and postage on a couple of the international ones I've received so far, the same can't be said for all, unfortunately. Post cards are a wonderful way to communicate in these sterile computer days.
I've already picked out a handful of negatives for the next PCX, count me in!