IMO I think they are lame unless you are sourcing machines for an arcade, operating or a "collection" that you actually play. My view is that most of the people with ads are just looking to low ball or flip. I feel that slowly erodes the cache of cheaper machines giving more of a barrier for normal people to actually play & enjoy them. I also don't get ripping off the uninformed seller either, I don't want any "basement gems for a low price". I personally like working my job for profit and playing pinball for fun, and not trying to mix the two up.