The 80's 5-series was a good car too. My '83 lasted me twenty years and over 200,000 miles, at which time parts cost made keeping it running any longer a bad investment.
But the gears and belts for CD transports can be found cheap on ebay. The drawer on my Theta Data Basic stopped opening, and in a call to Theta I learned that they no longer service that model. I was informed that the problem with the drawer in my Data was a common one, a result of the plastic gear that opens the drawer breaking down. It seems that the toxins in the air in Southern California affects the plastic the gear is made of! Luckily, the gear is available from Japan and China on ebay for $5-$10, and can be changed by a non-professional such as myself. Took about 30 minutes complete---very easy.