The thing is, the rumours are Z97 Chipset will be probally out around May, they usually release a chipset around then - so new motherboards.
Also Broadwell CPU's on same socket, who really knows when they will be out, the Intel charts say Q4 2014, but knowing Intel they will either bring it back, or delay it. They are supposed to run 30% cooler than Haswell.
There is always something new on the horizon with computers, whatever you buy today will likely be cheaper in 3 months time.
Broadwell 30% cooler than Haswell sounds unlikely.