If a cheap one last 6 months at £2 then a ceramic would have to last 3 years to break even
 
	Think ill stick with the cheap and cheerful approach  -my wheels are out every weekend so no hardship to swap bearing at the same time. 
 
	I do have 3 set of wheels and bearing swap intervals probably is not the same for each set  - My best wheels - bearing always nearly new  and would swap with slight play appearing , Normal competition wheels  -used for local trials so would allow a bit of play before deciding to change, practice wheels  -  when the tires rub on the swinging arm or fork leg then will change ?? well maybe not that bad