The possibility to add/edit categories and sub-categories in assets.
Maybe also the possibility to store pictures (.jpg) associated with each asset for insurance purposes ?
I refer to forum posting:
High priority: Ability to add/edit an Asset's Asset Type
I think that is what was meant originally by "add/edit categories and sub-categories in assets".
Lower priority, but definitely VERY nice to have feature, is attach a file (image or pdf) to an asset. Requiring saving all attached files to a single default folder, or to a single folder that is user-specified in Options, would be fine.)