I must admit, I foresaw the demise of the CD single a few bloody years ago! The CD single is virtually the same as the CD album but not with as many tracks on it! Nobody wants them, they'd rather have the whole CD album.
My missus is a great CD lover and hardly ever bought a CD single, she alway's waited for the album to come out.
I don't think the CD album will die out and be replaced by mp3's, for some maybe, but most people want something physical that they can hold in their hands and look at/read (the booklets you get with CD albums are great).
Vinyl is SEXY and always will be, my 2 teenage daughters love the L.Ps (they're not too keen on the 45's) and one is already going on about buying some decks when she gets her own pad, competition!!
Go into HMV and you can buy almost any current album in vinyl format.