I only have one snake, but I'm going to be breeding cresties soon, and though I still don't have /that/ many reptiles compared to some, I always will continue to name my pets since they're part of the family! ^^ Even if I have more than I can remember off the top of my head, I'd name them. (I'd even write their names on their homes if I needed to. xD)
so my answer is, I always will. They're my family and my babies. ^^