I think it's more a case of supply and demand , no company's going to make a product such as ribbons for a clock that's classed as obsolete and make a loss no business would operate in that way , they still can upgrade to a t3 or ets so no-one is enforcing ets on them but a t3 clock can cost to change battery's and servicing . I bet none of your members are using a central clocking point at post office as they did in days gone by , we have to move with the times , many may not like ets but t3's will be around for a while yet or you could always try getting the dials for a toulet