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