People don't buy very many CD singles any more. What's the point, when you can download the song for 99 cents from iTunes?
Only hard-core fans and completists buy singles nowadays, which is why the trend lately has been for CD singles to come out in two parts. The same single is on CD1 and CD2, but with different b-sides. This is a cynical ploy by record companies to squeeze a few extra bucks out of rabid fans, but I've made my peace with it.
It may not come as a total shock that I have every b-side that Morrissey has ever released (they are often as good, or even better than the album tracks). When I pre-ordered both versions the new single, "You Have Killed Me," I noticed that part 1 and part 2 have different covers:
iTunes can't compete with this. I love Morrissey.