Earplugs

Well the foam doesn't really irritate me, I'm just too cheap to buy the foam ones and keep track of them/save them for another time. :p
I just used my first pair of Hearos "high fidelity" earplugs at the Mastodon show at Sonar last week. Did a very good job. Presume they're comparable to the Etymotic Research plugs. Anyone tried both brands and have a preference?
Can you buy the Etymotic plugs at any area brick and mortar stores? Actually, any of the non-foam ones would probably do. Thanks.