Also with people yester day say the SD limited and not is sold out and then back in stock again: My wild guess is that Valve unlocked the stock in waves, expecting the scalper bots to give up after x amount of time/when the operators see the sold out label.
3 is already to much, people are complaining about the series s and series x destinctions in the current console market
1 version or max 2: One targeting full hd and one targeting 4k tvs