Why are people always getting into pissing matches because they think what they have is better

Probably because they are grouchy, crabby, and they don't really like to be in this hobby.

They want to have the final word.

They want homage given to them(I don't even know what homage means but it sounds kinda neat).

 It irritates them to hear that their fuses are homely and need to be replaced.

 Manufacturers are coming out with a new model and calling the last model incompetent or 'what was I thinking when I designed that piece of garbage'.

The endless debate about the best scotch to drink when looking up Barry Manilow cd's.

 Some don't have warm glowing tubes to look at.

Having really bad tower power maybe for some. 

Stressing about putting an ugly bowl in between your speakers.

Opening up and looking inside a $25,000 pair of speaker cables and finding there is no special cracker jack gift there.

Realizing that the Roberta Flack cd's will last forever.

Losing ones memory about what comes before an amp. Do I need a pa or not?

'These are just of few of my favorite things'.