Blakaeg, sorry to hear of your luck on your DC24! Dysons do tend to have questionable durability. Some say that Dysons are cheaply made (which I don't believe). I'm glad to hear that you've had good luck with Dyson's service.
Suckolux, yes, Dyson vacuums prior to the DC24 had "permanent lifetime" HEPA filters that never needed replacing. Those filters tend to clog up and smell over the years. When the DC24 was introduced in early 2008, Dyson introduced a rinsable HEPA filter, which fixes the issues of clogging up and smelling. My old DC07 still works perfectly after 6.5 years, and I've never had to replace a part on it.
Suckolux, yes, Dyson vacuums prior to the DC24 had "permanent lifetime" HEPA filters that never needed replacing. Those filters tend to clog up and smell over the years. When the DC24 was introduced in early 2008, Dyson introduced a rinsable HEPA filter, which fixes the issues of clogging up and smelling. My old DC07 still works perfectly after 6.5 years, and I've never had to replace a part on it.