The mods are usually time consuming, mainly because of the amount of different styles I've installed. The board needs an upgrade now but I can't face it at the moment!
The actual admin/modding/backing up doesn't take that much time really. If I didn't have an internet connection at work then things might be different though.
Yeah, technical upgrade - the board software is very mature now, and they're saving all new functionality for the completely new version due out later this year. Most of the upgrades now are patching obscure security vulnarabilities.