Actually, the only paid script in main use (vB, IPS, WBB, XenForo) that I'm aware of that comes with built in user albums is vB.
There are importers for forum -> forum (users/posts/likes) for most other paid scripts (exception is vB5). I have in use XenForo, WBB and IPS and none of them have user albums in them.
There are importers for the vB user albums into the galleries for those scripts (an additional add-on) so in reality vB is the exception, not the rule.
As for the reason of no vB5 importer, there are not that many sites that are using it so it's probably not economically feasible to do one. You can always do a double import (I believe IPS has a vB5 importer - I'd have to check my records).
I'm don't think myBB has built in user albums (again, I'd have to check my other site but pretty sure I'm correct) and don't believe phpBB3 has them either (haven't used it in a while).
XenForo is primarily a forum script with optional add-ons (the same as IPS and WBB - albeit WBB has a framework that you can extend if you don't want to use their forums and just the core user stuff.