There was a thread on ARFcom, yes ARFcom, where Home Depot had a Christmas or New Year's sale on the Peltor tactical ones for $50 .
I haven't actually looked at my local Home Depot myself, yet.
One of these days, I would like to spring for the molded in electronic ear plugs.
In other news.... my Aimpoint arrived in the mail the other day, from SWFA. I haven't mounted it yet. I am kinda giddy about getting it and to finally make a trip to the range.
EDIT: with whatever long gun, I never could get a good cheekweld while wearing the lower profile Peltor electronic ear muffs:
Pressing my face or cheek down into the stock, the stock would lift the muff off the ear and break the seal.