You choose your snare side head for the sound you want to get not for durability. A very thin snare head with good contact to sn average width of good snare wires will give you a more sensitive snare. I usually tune my snare side head a half step higher than my batter head.
I have this one snare that is a 10 ply maple with 45 degree bearing edges and I wanted it to be a very sensitive snare. The problem was it was TOO sensitive, so I had to replace the snare side head with a thicker head just to tame it a bit.
I agree with all of the others. The only time that I've had to replace a snare side head was when it got tired. You MUST have something else going on there, either bad snare wires (if they're rusty, it's well past time to replace them), an issue with your stand or possibly, a roughness or a sharp spot on the bearing edge.
Have you checked and smoothed down the bearing edges on your drums? Most drummers don't realize than things can get in there through the vents and eventually lodge between the skin and the bearing edge. It will pay you to open up your drums every once in a while, clean the interior out and check and attend to the bearing edges, replace the heads and re-tune. Think of it like a tune up and an oil change for your car.