When you say "Snow Tires" what exactly do you mean? If you mean All Terrain tires that are M+S, then yes many of us do. I am a little partial to BFG A/T KO's. They have excellent snow handling, yet are VERY loud when cold. But once you get above freezing they quiet down and sound just like a normal tire.
I have used A/T's year round on all my 4x4's, even on my 4x2 truck. I have used them on the following with nice results :
*91 Ford F250 with 7.6 gas
I've only put about 10k miles in the last 4 years, but they handle fine in the summer, I actually find they are softer than normal tires and I can't spin the tires out as long as I used to.
*05 Dodge durango 4x4 5.7
I ran 18in Goodyear Wrangler silent armor's on this, wish I had taken them off before I turned it over to the insurance comp. I put about 20k on these and still had about 9/10th's original tread.
*99 Dodge durango 4x4 5.2
I have 16in cooper ST AT on this and about 20k miles, very fresh tread on these, still has the nipples on both sidewalls.
Just remember they will be a little softer in the summer, that's where most of your treadwear will occur.