I've had my girls since February and I still get excited to hold them and interact with them, see them shed and eat and just do any sort of snakey things! Then again, I've pasionately wanted pet snakes since I was a wee thing, so my enthusiasm might not be standard haha. We're going on vacation tomorrow and I have to leave them for a whole week. As much as I'm looking forward to the trip, I miss my babies already!
Addendum: I find that having my girls in tubs and not being able to look at them constantly is better than having them as "display" snakes in tanks. If I want to look at their lovely scales, I have to pull them out and interact with them.