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Yes, I'm sure you are correct. Just seems peculiar that a much simpler door (no overhead frame, no electronic operator, no radio signalling bippers/receivers etc) is more expensive.
I'd be better off getting two of the sectional, bipper activated doors - but the right hand garage is going to be a workshop, and I anticipate being in and out of it frequently, so a conventionally opening door has a strong appeal.
Supply and demand