Help me decide on a Warhammer 40,000: DoW game

WH 40k: Dow 2 was recently in bundle as i know, so off you go to steamtrades if you want it cheap

Get soulstorm the campaign offers all races

So I'm seeing a bunch of votes for DoW II. I would have expected the newer stuff to get higher marks (partly based on Steam ratings). Is that first one larger than the others or something?

DoW II has the best Singleplayer experience (you can only play as space marines on Singleplayer),
Chaos rising adds a new Singleplayer campaign that continues the story of DoW II (you can only play as space marines on the Singleplayer)
Retribution adds a couple of campaigns (1 for each race) but all of those are "inferior" to the previous games. Retribuiton is a stand alone expansion as such it's the best DoW II for multiplayer (more races, maps,etc). Most DLC are skins, if i remember corretly the only DLC worh buying is a hero for the stand alone mode (only if you play that multiplayer mode)

if you want the best campaign, go dow 2.
retribution is awesome just for last stand, get 2 friends and have fun with that.

So now, for whatever reason, none of these games are showing up as having prices at all on Steam. I couldn't buy any of them if I wanted to. (It isn't just them either--about 1/3 of my wishlist suddenly has no price and can't be bought.) What is going on? Is anyone else having this bug?

From what I remember that was true few years ago, you have two options: full pack if you're single player, Retribution if you want multiplayer.