The point is they are taking an engine that is there, and using it (including models, UI, etc. it seems) and capitalizing off the success that is DayZ. I'm not saying it is going to be better, and I'm not saying it is going to be worse. What I am saying is that if it fills the void within the few months before the release of the standalone DayZ, I am happy. From what I've seen, the engine is better in some respects: the zombies don't look glitchy as shit, while in the alpha videos they do look dumb as hell (but at least no hitting through buildings or running in retarded zig-zags). The engine is more optimized so that older/less powerful PCs can run it, and unlike the Arma engine (which they are addressing in the full release of DayZ) there aren't a lot of unnecessary things they'll never implement (like a model having three bones per finger as Rocket mentioned in a Q&A that they are cleaning up for efficiency in the standalone). That said, the engine also seems worse as in it is more cartoony (preference), therefore less realistic. It doesn't act like a sim, more like a shooter, because even though Arma is a shooter and does play as such, there is obviously more room for character simulation and specific actions. Other pros like being able to fortify structures, having multiple characters, having more customization, specific islands where you can store your loot, ability to easily rent servers in game, more official maps supposed to be coming (won't necessarily hold my breath), and the addition of a mode that lets you not lose all your stuff when you die (which I personally won't play) seem to make it different and somewhat more interesting right now. We'll see how it plays out, and $20 or even $50 is not much just to try out something...I've spent more on stuff that hasn't given me any enjoyment in the past.
