Playing catch-up

One of the journals we receive is behind by 3 years in publishing. This is not a novelty. However, they have a solution! They are going to publish the next three volumes as combined single issues! So I will be receiving v. 31 nos. 1/4 2007 and et cetera. My problem is that each "volume" is merely a 100 pages and that is the same size as a regular "issue number." So, that means that we're getting a 1/4 of the product for the whole price... The ironic chord in all of this,however, is that the journal is one about "ethics"!