It's going to vary greatly based on location.
Here in Michigan and Indiana, just regular grocery store prices are roughly:
Butts: $2.79
Full spares: $2.99
Baby backs: $3.99
Packer brisket: $4.99
Ribeye steaks: $12.99
Beef tenderloin (whole) $14.99
Tri-tip: $5.99
Now keep in mind, those are grocery store prices here when not on sale. When there are sales there are usually some really good deals, especially on the pork products. Like $1.19 for butts or $1.49 for spares. But beef has just been downright expensive for the past year. And of course, prices are lower at the area wholesale clubs and sometimes Walmart, or if you buy by the case, etc.
Now if you're talking wholesale prices for restaurant, prices are quite a bit better. Even briskets at under $3/lb.