I LOVE seeing other people's collections! I really enjoy seeing new morphs (base or combo) and seeing how a snake is looking as it gets older. I especially like to see people kill the odds with hatchlings. A good example here recently of killing the odds is RegiusCo and that pied to het pied clutch.
A good example recently of seeing some cool morphs and seeing how they are progressing is Albinos Unlimited posting some pics of the Jester and Banana Clown.

Something else I like, as some others have stated, is the variability of the morphs. Seeing how different some of the same morphs or combos look is really cool.