[mnem]

You really don't want things made substantially of glass when you have to hold them at arms length and bash them around nooks and crannies :) One of the nice things about Dyson vacuum cleaners is that you can take most of the important bits apart by hand - something other manufacturers don't seem to bother thinking about. Vacuums get blockages all the time, especially if you happen to have cat litter made from wooden chips...