Browsing the Steam Summer Sale, I noticed that Might and Magic Heroes V (with all expansions) is 33% off. MMH VI is also 33% off. I played the demo for VI (which is not the tutorial, but farther into the campaign, which made me feel better about how bad I was doing), but there isn't a demo for V.
So... How do they compare? Should I get V before VI? (I'm kind of inclined to, since V and the expansions is $20 cheaper than VI alone.)