I've never really had a course. I buy what interests me, build it up, ride it until I'm bored with it and move on to the next interest in cycling. I'm currently in a touring and randonneuring phase, and am working on both new and old versions of each type. The one constant for me is practical, utilitarian commuting and city bikes, whether it's a Raleigh 3 speed or a stripped down fixed gear. Racing type bikes don't really do it for me, maybe one day in the future.