Brands that have the least depreciation

I have bought and sold quite a few pieces over the years. I don’t buy very many brand new components. The problem with doing it this way is I’m unable to audition various pieces with my gear. Therefore, when I get something that doesn’t work, like a wyred4sound integrated a few years back, I’ll need to resell it. I have learned to stick with name brand equipment so if I do need to sell, I won’t lose money. So, akg_ca, let me answer objectively.
Components, McIntosh
Cables, Kimber
Speakers-vintage JBL

 One brand that does not seem to hold it’s value that I don’t quite understand is Concert Fidelity. In particular, the preamplifiers and amplifiers are superb reference level pieces of equipment. I am not sure if it is the lack of name recognition or advertising?

If I was in the market for second hand equipment, I would only consider brands that service their retired equipment in house.
On the other hand, look at the money early, Japanese, solid state is pulling in now.
What will the download generation crave?

Definately B&W Loudspeakers,AR,Classe,Mark Levinson,Perreaux ,Klipsch, & Magnepan just to name a few . I would not touch McIntosh, Wilson, or ayre with a 10 foot pole. This is just my opinion.