@mammothguy54: Yeah, Music On Vinyl is a terrible reissue label. Everyone here should avoid all their LP's. I'm surprised Acoustic Sounds is selling them.
The MoFi A Salty Dog was $35 when released, but as with all MoFi's the price skyrocketed when it became out-of-print. But don't despair: the original UK pressing on EMI/Regal Zonophone also sounds fantastic (I have both), and should be available for less $. The trick will be finding a copy in Near Mint condition.
I too saw Procol Harum in 1971 (at The Fillmore), and though I greatly missed the organ playing of Matthew Fisher, the group was great live.
By the way fans of the original PH line-up (the first three albums): Matthew Fisher's three solo albums are well worth looking for. I love 'em!