Quoted from Kaytrox:
I am currently shopping for Gottlieb late 60's through the 70's EM machines, to start my collection. For me, collectibility and 'coolness' just don't matter. I want a few of my old time favorites to play in my game room. I'm not at all tech savvy, and I certainly don't want tinkering with them, and general maintenance, to become a life-consuming hobby. So in my mind, I've reasoned out that spot targets would be more durable, and need less maintenance than drop targets, as they merely rock back and forth, rather than drop and reset. Is this correct, or I am naive on this issue?
If I may proffer an opinion; if you are worried about reliability you are focusing in the wrong area (drop targets vs spot) though when it comes to EM's I have never seen a broken drop target or spot target. I'll grant you spots will be more trouble free than drops due to simplicity. Less moving parts and fewer switches too.
I'll garner some hate for the following, but frankly don't care. Gottlieb's EMs (of which I currently own 4, Melody, Hearts and Spades, Domino and King Pin) tend to be less reliable than Williams and Ballys EMs. The relay contact arms are much shorter, some of the relay designs are VERY problematic (I'm looking at you AS and AX) and some of the stepper units seem to be more fussy than Williams.
Williams drop targets from this time period tend to be steel with plastic faces, "unbreakable" is a pretty fair description.
If you have your heart set on a particular Gottlieb title, I totally understand. I spent 2 years looking for Melody and Hearts and Spades. Great playing machines that sounds delightful. Well worth the occasional hiccup, which will happen with any EM.