Funny how you don't even notice a thread like this until you need it.
I am in the middle of an overhaul on my Theatre of Magic. I pulled out my 1 year old Marco balls when I started the process a few weeks ago. They were, surprisingly, rusty... The pinballs I had (probably from them) for about 10 years before that were much nicer looking, so I pitched the rusty ones into a bin, and was going to just put the old, but not rusty ones back in.
Well, tonight I was ordering some parts from Marco, and it reminded me that I really do want to get new pinballs for the machine. It seems like for every place that someone raves about, there are a number of complaints about quality going in the toilet (heck PBL has been having quality control issues for over 3 years on theirs and as already noted *might* have another batch for those daring enough to try them coming in a few weeks).
So I am going to just tag along for now and see what happens. Thanks to those that have shared their experiences.