Mostly I can afford the designers, but I still make it a point to save up for it, and then when I buy it, I feel like I've actually earned it.
You hit the nail on the head. I think you just appreciate things more when you wait and save rather than splurging.
Not that splurging isn't wonderful but I think that sometimes the act of saving is good in and of itself. It also gives you some time to think about whether or not you really want the bag.