I'm 5'2 and have no desire to be any taller. A lot of guys find short women cute! It'd be a bit freaky to be taller than my boyfriend as well.
I'm 5'8'' and don't mind it at all. It can be a pain when I wear my ultimate favourite pair of wedges, which are 7 inches, because I tower over my mates and most guys look twice and you can just tell that the words 'ahh! Giant!' are crossing their mind; especially if they're shorter. But I don't mind overall, apart from shops nearly always having run out of 34'' leg jeans. But as has been said, I can't complain about having long legs! I know it's a downside if your boyfriend is shorter than you; I've experienced this and it really got to him, to the point where he got so insecure he got aggressive. But hey-ho, if wearing massive heels combined with being tall does anything, it narrows down which guys are best to date! ;D
The only reason I can think of is to have longer legs which are generally deemed more attractive.
Any girl above 5 foot wearing heels is very unattractive to me.