The only reason I don't want a DSLR is when I can't fit one in my pocket
If I am going out to a party or going to visit friends with kids, I will want to take a few happy snaps, but I don't want to kill the feeling by bringing out a monster.
So, for me, sometimes I do not want a DSLR, I want a good/small P&S.
As for a SLR instead of a DSLR ... I am not that tallented.