If Microsoft made Kayaks:

A particular year-model of Yak wouldn't be available until the following year.

Everytime you wanted to try a new paddle, you'd have to buy a new Yak.

Occaisionally, your Yak would stop dead in the water, and the only way to fix it would be to tow it back to the dock and re-start it. For some strange reason, you would accept that.

Your paddle could only be used with one Kayak.

A marketing blitz would make you feel like a second-rate, tasteless slacker for not upgrading to this years model of Yak. (Oh, wait.....they already do that now!!!)

Your paddle from last year will not work with this years Yaks. You would have to upgrade the paddles.

Semper Fi!