Having an Airlflex Storm which some compare to a Darlek mine just levitates up the stairs whilst screeching I will exterminate all stains and dirt
I have 75ft of hose and only nearly came close to not having a enough length on one job but managed it with around 2"inches to spare. Some of the houses i have done 50 foot would have left me slightly embarrassed. Having to explain to customer that i didn't have enough pipes to do the job. For the extra cost of 25ft hoses you could pay for that in one or two jobs.