Growing up in the Greater Manchester area I went to watch quite a number of teams such as City/Bury/Bolton/Oldham, anywhere I could get to on public transport as a kid I'd go just to watch a match.
My first proper team, as in one I was often taken to was Bolton Wanderers @ Burnden Park by my Father and enjoyed it, but when I stopped seeing him I looked at other clubs in the mid 1990's.
Many Family members supported City or United and I'd always had it instilled in me to hate United so I started going down on the Bus/Tram to Maine Road in the mid-1990's.
My Aunt had been a Bury Fan but started supporting City when Colin Bell moved from Bury to City (lol)
My Grandfathers first match at Maine Road was in 1947, first thing he did after Royal Navy service was go to a match.
Reasons sound childish but yea I preferred the colour Blue, pocket money wasn't much so it was cheaper to get in at Maine Road.
Didn't go often as much for a few years when City moved to the City of Manchester Stadium, maybe the odd game, but enjoyed it under Sven which got me hooked again (2007), and became a season ticket holder.
I consider myself a die hard supporter but if say City were to relocate or I moved to a place far away from Manchester - I'd choose another local club to me.
Just think, if my Dad had shown interest in me as a child I'd be watching shit right now @ the Reebok Stadium hahahaha.... thanks Dad ;)