Too many yes, number canging all the time. I tend to count "my bikes", "my sons bikes" (I keep the numbers down by sending some to his fathers or grandparents house so i do not have to count them) and then there is some left thai I decided I do not need to count, since they do not belong to anyone..
Me: one light great mixte, one "sports type" mixte, one ladyes tourer, two old folders, one MTB (not used this summer), "longtail dogbike" used all the time, hybrid bike.. that is 7
Son: One old roadbike, one tourer, one BMX, two old folders (he lowes them, brought one to his fathers since I wanted to add gears), his favourite MTB and a soon finished longtail.
Not counted: project longtail, soon to be dumped mixte, 5speed kept just to pick parts, GT MTB almost new, old (after war) ladyes 3 speed, my aunts bike, SMALL road frame and so on..
Gave three away yesterday. Living in "bike heaven", dumpsterfinds all the time, but then there is a lot to do

and a lot to ride..