David Kilpatrick wrote:It's unlikely to cost under £100, and if the sensor assembly needs replacing with no warranty protection, it might be £200+.
With the A200 at £230 for a body only, you would have to weight this up carefully. The A100 is in some ways a better camera than the A200, but the A200 also has some advantages.
I think that, as with a lot of modern electronic equipment, the purchase of a digital camera should be regarded more as a lease than an outright purchase - after a certain period, it will be time for it to be replaced even if it is still working. Of course, you would expect a camera costing over £1000 to give you several years of service, and it would be worth spending over £100 on a repair. For an A100, it's probably better to replace with an A200 (or maybe an A100 on Ebay) and console yourself by working out how much you saved by not using film.
When buying a sub-£300 camera, I suggest that one should budget for replacing it after no more than two years.