It makes perfect sense to choose lower-end mainboards for the first benchmarks: these products will be very popular. Moreover, each mainboard is unique in its own way and differs from the regular Intel P67 Express and H67 Express based products, which makes them especially interesting.
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips