I do agree with you Nando, but having everything on one cart is so handy. On the Genesis I have pretty much every game I want for it already, but not having to dig out the collection when I just want to play a quick game of Streets of Rage or something is awesome.
I mean, if I want the full blown Genesis experience I'll grab my model 1 Genesis and Sega CD, find all the cables, plug everything in, grab a stack of genesis carts and go to town. If I just want a quick game of Sonic or Gunstar Heroes I'll just plug the little model 2 up and stick the flash cart in.