105C capacitors almost always last longer in hi-fi equipment due to heat. Electronics fail mechanically first, primarily due to thermal cycling and vibration. High temp 105C, vs. 85C caps mean, they are built better during construction, and can handle higher temps. Well worth the extra money if you're planning to keep you equipment for a while... FYI if you look at the price difference between 85C caps and 105C caps, it's not much. But when manufactures build 1000's of components, it can save $$ which translates into profit. Also if your equipment fails, you will have to buy another, that also means $$. Just my 2¢.
