Worst deal was on one of the first pins I bought: Xenon... the face had been repainted BAD (one eye was bigger than thge other, mouth all wrong...) front glass was missing, electronics were a basket case... generally a wreck... paid £500 ($800), bought a replacement playfield for it that was also not great for another £150, and a smoked glass for around £50 (total now £700, $1100)... Ended up selling the game non-working for £500 after finding a better example... This left a bit of a bad taste in my mouth for pinball (I was hustled by the seller to be honest), and in an attempt to get rid of this bad taste, I started buying pins that were a good deal in order to sell for some profit to recover the loss on the Xenon... I kind of overshot a bit...

Anyway, best deal was Williams 4 Stars that I got for a crate of beer... not in bad shape either...

I suppose my best deal, looking back, was very early on when I got my first bulk purchase of the following games for £2200 ($3500):

IJ
CFTBL
ST:TNG
FT
TZ
Earthshaker
Radical
Rapid Fire
JP
TG:HS2

All complete and mostly working... Wish I could find another deal like that again... You'd have to pay double what I sold 'em for to get 'em back again...

Those are amazing deals indeed!! Pretty much impossible to beat those!!

My bulk deal was in 1999... I ended up selling them all eventually but wishing I'd have kept the Radical now because I didn't even play that one, and have never seen one since... The total sale price was £4440 ($7100), so I doubled my money... but could sell them for twice that now easily!!