I've never thought of the history tours as "commercial", but more as a gift. If they wanted to do it commercial, they'd do many similar history tours with classics from all ages, not just series of four albums. What I mean is that they would have had a setlist from their whole 80's and 90's history, so we would've had Fear of the Dark, Iron Maiden, 2 Minutes to Midnight and The Evil that Men Do all on the same "history" tour. No, I view the History tour(s)/DVD(s) as a gift from them, certainly not commercial. Another Life and Drifter, among others, are certainly not for the "mainstream" Maidenfans. And if you look at how much stuff the Early Days DVD has (Live at the Ruskin, etc.), it is definitely not a rip-off in my opinion.
As for the original intention of my post, I meant "commercial" as in "wants to cash in as much as possible", not "commercially succesful". In other words, to what extent has Maiden cashed in on their fans as opposed to how succesful they have been?