DC Comics will release Batman Vol. 1 Omnibus hardcover this October. Written by Scott Snyder and the drawing by Greg Capullo, it collects issues #1 through #33 of Batman and will retail for $125.
Amazon has it available for pre-order for $89.96. That works out to be $2.73 per issue.
Once again, I’m confronted with the reality that it makes no financial sense to buy floppy comics. It’s better to wait until comic books are collected. You run the risk of missing out on obscure books that never get the collected treatment, but most of the time those comics aren’t worth reading anyway.
There are of course exceptions to that rule, but not many.