I would also like to point out that each of the 4 Sega MegaDrive Genesis
collections are £2.75, making the whole collection £11 for 40 games, £0.275 for each (if I did mental arithmetic correctly...) Wish there was a way of getting all 4 packs in one deal though...
You can get the Megadrive (Genesis) gold collection on disk which has all 4 packs. It's what I have. Don't know if that interests you, just thought I'd throw you a heads up.