Its entirely possible.
One friend of mine bought Scott moninger's bike straight after a race in Australia (Melbourne to Warrnambool) because it was the end of the year and Scott couldnt see the point in paying to ship it back to US when he was about to get a new one.
also, another person I know has a power meter that has C. Evans written on the back of the head unit.
It all depends on the contracts. A lot of pro contracts say that they get to keep the equipment at the end of the season, for instance.