I wish the limit were based on HP rather than number of rows. Four rows of 168hp takes up quite a bit more server space than five rows of 84 or 104. I'd like to maybe add a base to my low cost case eventually, and don't feel that 420hp puts me quite into the "really big rack" category (a c-cup at best!). Granted, yeah, I could technically afford to contribute, but I spend so much time fantasizing about these modules that by the time my paychecks arrive, I've already spent them.