Newbie question(s) here: It seems that videophiles prefer the single-disc players. Is this strictly because they last longer (less moving parts)? If so, do you think an "occasional" user would still have problems with repair issues? I'm looking to purchase my first DVD player and I was thinking about a changer so that it could replace my CD carousel changer at the same time. Is this a bad idea? I'd really appreciate any advice or opinions.