Nope! I dont know alot about this stuff but I want to be able to justify spending $500-1000 on components. I guess I'm a realist when it comes to explanations. I understand that you have to go out and try this stuff, but when I want to upgrade I would like to know why people think this is better than that so I have a baseline to go by and let me narrow down my purchase.

If all things are equal (and I know it cant be) but if the same person rode the exact same bike, and one week he had my Sora components on the bike, and then the next week he upgraded to tiagra or higher (or Campy) what would feel different?
Could he climb better? would the shifting be more precise? or would he go quicker because they were lighter?

I know this is a difficult question, but surley, people can "feel" a difference that they could put into words or an experience that can make me say "hey, thats what I want them to do?