Hoses
The hose on an upright Dyson is actually rather symbolic in my opinion, as the whole design of the hose does of course hark right back to the original Dyson cleaner and is something James Dyson thought of, designed, created, and seemingly fell in love with to the extent that no attempt has been made to better the problems which his design has created.
No other manufacturer would ever consider plugging away with such a poor design, which ultimately must have cost the company tens of thousands of pounds in hoses replaced under warranty, but where others would be forced to go back to the drawing board and rethink the whole design, Dyson has made so much money that it can take another approach and put money into a sinking fund for want of a better expression, and use this to fund the cost of sending out new hoses. Remember, it isn't just the cost of the hose, it's also the administration of the order, the cost of the call-handler or e-mail handler, not to mention the postage & packaging. It all adds up.
The interesting thing about the Dyson upright hose design is that so many Dyson owners I have spoken to have actually said the hose was the part they liked the least, as they generally found it to be awkward, unwieldy, and generally inconvenient. One woman I spoke to claimed that in her haste when removing the wand to use the hose, she once unwitting put the whole thing straight through a glass over-head light fitting as she pulled it out of the cleaner. Another said to me she actually considered that little thought at all had gone into the design of the hose, given how impractical she found it. I have no idea what cleaner she had before but what she did say was that all she had to do with that one was to pull the hose end out of the back of the cleaner to use it. It could of course been any number of upright cleaners with a description like that, as few others seems to have gone anywhere near replicating the Dyson design.