I figure that no matter how many bikes I have, it's always 1 less than 'too many'.

I've personally have 3 at the moment and my husband is holding steady at 4. We do have somewhat of an 'one in, one out' rule as long as we have the same number each. Or, at least, that's my take on it since I have one less than him.

I'm hard to fit though, so buying bikes for me is a long process and I tend to form lasting bonds with my bikes. My H is joe average in terms of size, so he buys bikes off-the-rack continuously. Seriously. It's a constant flow. If he kept every bike he'd bought in the past 5 years we'd have upwards of 25+ bikes in our garage (no joke)!