I'm in the market for a new lower end road bike and I've narrowed my selection down to a few choices: namely a Marin Portofino, Argenta, or Specialized Allez (basic triple model). I just can't decide! Is the Argenta worth the extra couple hundred over the Portofino for the small parts upgrades? Most of the parts seem to be similar? Is the Allez comparable to these bikes? I've done a ton of research, all of shih has revealed a huge list of pro's and con's, only making my decision harder. If anyone has some actual road test knowledge, or just and informed opinion it would be much welcomed.