It would be pleasing to me to run just one or maybe two bikes but I have 5 and I can only bear to sell maybe one or two.
SS cyclocross - Alan alu frame.
SS Kona cindercone 18" 97
SS kona unit 2-9er 16" 2005
Klein Attitude V 2005
Team Carbon Boardman road bike 2009
I think the unit has to go but I cannot bear to lose the cone (had it over 10 years). The Klein I love and I really dig the versatility of the crosser. The carbon road bike is my new edition.
If I had to have two it would be one geared MTB and a road/cyclocross bike (probably SS)