you'll find that some plastics last longer than others
the polymers on a Glock pistol will last til the heat death of the universe
the plastics on a cheap smartphone or laptop will degrade after a decade
about usability issues... i bought a harmon bds 280 bluray wifi streamer intregrated amp
there's no buttons for operation anywhere on the machine, just a very sexy but not well thought out lit animated volume and on off button
so you cant do nothing but with the remote or your phone app... and then you kinda need a screen on all the time to see where you're going as the dot matrix screen kinda sucks
amazing sound though but no wonder they sunk like a rock