So exactly how much are these butcher cover albums worth?: The 2007 (6th) edition of Price Guide For The Beatles American Records by Perry Cox and Frank Daniels gives us the following figures:
1) First state mono in near mint condition: $4000
2) First state mono promotional copy in near mint condition (w/Promotional Copy – Not For Sale stamp): $5000
3) First state stereo copy in near mint condition: $12,000
4) Second state (paste-over) mono copy in near mint condition: $800
5) Second state (paste-over) stereo copy in near mint condition: $1500
6) Third state (peeled) mono copy in near mint condition: $800
7) Third state (peeled) stereo copy in near mint condition: $1500
Of course, these figures are just guidelines, and to be honest, seem to me to be quite low in comparison with some recent sales I have seen. In the case of first and second state copies, if the albums are still sealed (i.e. unopened) in their original shrink wrap they can bring several times the price listed above.