Major grocery stores around me (Wegmans and Tops) have them off and on for $5/lb during the summer, but they only stock a few at a time. They go up to around $8-$9 in the colder months.
A place near me called Market in the Square has them year round for $3-ish.
An even smaller place that's on my route to work is where I've been getting them- they sell them all day long at around $2.80. Last trip I bought 1 to cook and one to freeze.
"Eating 'Que isn't making me fat- it's the beer I drink while lounging by the pit."