I bought the collectors edition, partly for the bonuses, but mainly to support the developer who made my favorite game of all time.
Pretty much the reason I got ToV; a series of perks and a couple of new units for the price of a full game seemed like a rip off but I bet a lot of die hard fans got it more to support the developer.
What's just plain bad about the digital collectors edition is it doesn't feel like any effort was put into it; one single faceplate couldn't have taken that long to design and the extra commanders are nothing but 5 random abilities. The tank skins are pretty nice but they're not even exclusives. It feels more like Relic pulled a fast one on me considering there is nothing really exclusive besides the faceplate. It might as well have been called the "DLC Pack #1" at least a lot of people would have appreciated the honesty. I'm not upset for getting it, just a little disappointed that we didn't get a real Collectors Edition with cosmetic multiplayer features not available anywhere else.