When should I buy DayZ?

Not 50% anytime soon. Wait for another 2-3 years for that to happen.

When it was on sale, it was a mere 10 or 15 percent off.

It's already on around -50% (price will rise to around €50 at release date), so don't expect anything big, maybe -10% to just get some exposure during sales on main page.

no the game sucks

Not really, better wait for it to get out of alpha or get it on a big sale.

Never.

Buy him Arma 2 and Arma 2 OA so he could play DayZ mod ;)

Now - $30
1 year later - $60
2 years later - 50% off = $30

Your choice.

I am not sure when the game will go on sale, but the Winter Sale is your best bet!

Probably never. If you're asking if you should buy it now, it means you're not convinced the current feature set is worth the price. Which means you won't be happy with its current state. So if you buy it now, you're speculating the promised future features will get you satisfaction. Let's say the game even lives up to its expectations, will people even still be playing it 2-3 years from now? It's a multiplayer game, if it loses its appeal there's no community and no reason to play. Maybe you will get lucky and it will be one of those few multiplayer gems that lasts for years like Starcraft, TF2 or Counter-Strike (even CS has moved through 3 major iterations over its time) but to be honest DayZ doesn't have that lasting gameplay, its novelty will wear off soon enough.

wait xmas -> 10% -> buy

ignore all the engineers who scream "AMG alPah !!!1 iz buggged, RUN RUN FOR YOUR LIFE 1!!"
It's a great game

When DayZ will have a normal competitor. Now it just gathers cream.

When it's officially released and remotely playable and not broken. In other words: Not now or this year.

When it's finished... eg.: never.

You're going to waiting a very long time before it goes on sale for -50%.

I bought it like a year ago, still looks the same to me :/
So wait a bit more...

Never. Played alot in dayz mod , and days SA.
35 fps in SA,lags etc + rain -> hipotermia -> death every 20 min .
Mod is better to play srsly(cars,good balistics,alot of weapons etc) Not popular for all include hackers so you can play now without hackers:).
dont buy SA until Rocket put his "DAYZ SA" to beta 1.0v ...

It's funny that most of the guys who scream "NEVAH", "BAD DIS ALHPA IZ BUGGED", "AMG IN ALPHA SINCE 1894"
don't even have the game in their accounts lol. haters gonna hate

I recommend waiting until Beta or even when it's complete. It's currently not optimized and has a lot of bugs and missing features.

Also, a 50% sale is very unlikely. Expect a 10-15% sale or no sales at all.

never...bought it and i regret it

wait until is finished... if you want your zombie experience get State of Decay, is fun and is a complete game.

when it is actually finished

Never.

only masochists can have fun with that crap. hit your brother till he- oh wait... .-.

You should buy arma 3 instead. That's my new dayz not that faggot one