I know what you mean - I get the prog and meg (and will never stop!), but my biggest spend was always Marvel TPBs - since the end of the marvel universe I've managed to make a clean break, I don't feel engaged in the "new" marvel universe, and the same goes for DC - they lost me about two reboots ago. This means that I spend less, but I can often visit a LCS or Waterstones and find nothing that piques my interest.
I have been buying a disproportionate number of Image comics at the moment - Sex Criminals is wonderful, dirty fun; Bitch Planet's also good and I've bought a few Vol.1s that I may not keep up with - Ten Grand by J Michael starzxsxscxsxsczsczksy (can't be arsed to look up correct seplling) and a couple of others whose name escapes me at the moment.