My retro collection, with regards to valuable items, is a work in progress as most of the consoles were mine but when you're younger you don't realise that packaging was important

I do have a NES and Saturn both boxed in original packaging that aren't in too bad condition.
Also recently got a boxed copy of Zelda A Link to the Past for under ?20 which I was happy about and a copy of Skies of Arcadia for Dreamcast that is mint and again was under ?20.
I have a few CE's from recent games including GoW Ultimate Trilogy (opened but never used), Fallout 3 & New Vegas, Skyrim, Dead Space 2 and others but none of the press kits that seem popular here.
Unfortunately most of my retro stuff is boxed and away at the moment due to work going on at the house but I'll get some pictures of recent acquisitions and stuff in reaching distance soon.
My favourite series???
Current gen stuff it would be Fallout, I love 3 & New Vegas so much that I've just finished Fallout 3 again on PC (probably 3rd or 4th time) and am going to start New Vegas again as soon as time allows. Here's hoping for an announcement on Fallout 4 soon
Retro would probably be Mario, just timeless and I could quite happily still play SMB1-3 and World today and not care what they look like they are just fun.
Favourite Piece? Some signed Valve goodies (posters, book, mouse mat) gotta love Gabe and co even if they do work on their own time zone