My collection is small number compared to many here on BF: 6 bikes all kept in riding condition and I ride each bike roughly once a month, except in the winter, then it's only the two MTBs.
Left to right (miles for 2015):
Kona Dew Drop (2,035)
Mondonico (1,169)
Felt Z85 (1,044)
Marin Nail Trail (277)
Surly Pugsley (778)
Globe Daily (500)
I'm lucky to have a large garage and Lisa (wife) has talked me out of selling any of these bikes.
The other thing about this collection, you might be shocked at... how little I spent on these bikes - one was a prize, one was a gift from a neighbor, three were bought at year-end with major discounts, and one (Pugsley) was bought prime-season, but my LBS treats me like a king and I still got a nice discount.