I own DoWI with all expansions as well. It has been a while since I touched it ever since DoWII came out, but I can get into it again since it still loads of fun in the WH40K universe.
I really hope people here would adopt DoWII eventually. ("There is Only War" Patch made things soooooo much better.) It seems the real problem is that DoWII is very demanding in terms of graphics and CPU processing power, and since it uses P2P (instead of servers) for multiplayer, players' network latencies is affected by any old/low-end/mid-range PC in the game. And most people in our clan have been unable to upgrade to the appropriate level for DoWII at the moment.