Thanks heaps guys for the comments so far.... as suggested i'm pretty new to the scene so certainly don't want to blow my cash on something overpriced. These machines have all been in service for the last few years at least and i would assume even longer. I had a few games on both the TZ and GNR and loved them both.
There is time to inspect/play etc before the auction tommorrow and i will certainly have another really close look (as well as take someone else for another opinion).
I will definitely be setting limits before the auction starts, knowing there may well be bidders who have heard that pinball machines are worth $$$ or have even less idea than my limited knowledge acquired over the last month or two.
