Of course SLRs are selling better than mirrorless, that's precisely my point. They are selling much worse now
That's half the picture. While sales of DSLRs has fallen, the same thing is happening to mirrorless cameras.
"The April shipment numbers are in, and the trend I've been commenting on for some time continues: mirrorless camera sales growth is still not what everyone seems to think it is. For the fourth consecutive month, mirrorless shipments from camera makers in 2013 trailed shipments in 2012...
No, this lowering of production doesn't imply the death of mirrorless cameras, it simply acknowledges what I wrote over a year ago: mirrorless cameras will not overtake DSLR sales any time in the near future. The initial high growth rate of mirrorless was a false one: the camera makers overzealously produced them when the demand wasn't really there.
I still predict that the mirrorless/DSLR world will eventually be one and the same. Once phase detect autofocus is on the imaging sensor with the same level of performance, there's little need for the cost and complexity of the mirror system in DSLRs. As Canon has shown recently, you can make much smaller DSLRs, even with the old mount depths. Long term, the difference between most mirrorless-derived cameras (m4/3, NEX, etc.) and most DSLRs (EF mount, F mount, Alpha mount) is going to really only be the depth of the camera. The smaller sensor cameras (Nikon 1, m4/3) will have an advantage of smaller lenses, at the disadvantage of lower image sensor performance."