Hey bbtuna,
Since you've already amassed and accounted and tabulated and rated the Tornado models from early ones through today, perhaps you could start a model rating system, with input from others via poll or via a post with corroborating experience or information that would rate all current tables.
Like a blue book for foosball in North America. You could have a current or last-checked, last-noted prevailing price (from Craigslist and/or, yahoo auctions, eBay and/or Buy.com, etc..), specific features and introduced improvements and variations. It would be so helpful for everyone looking to purchase a new or used table, and how much to sell or trade them in for, later..
Then we could all add to it, making parallel ratings and price values for TS greentops, bluetops, browntop $1M's, Deutscher-Meisters, Dynamos, even Bonzini's and Rene-Pierre's ... Would be nice if a table from a certain year or production run could have:
1. Prevailing price right now, and where last seen available, if not a new one.
2. Quality rating by consensus, from 1 through 10, where 10 would be the best Tornado ever.
3. How to identify via serial number, markings, actual photos, etc. the model and year.
4. Best ball and equipment ratings.
You could even compile this annually and sell ads online for updates. Whaddaya twink? You seem to alread have compiled a great basis for a foos bluebook. Wouldn't be that much further to expand that. I brought this up because all the comparable league/tour games/hobbies like pocket billiards, bowling, darts, and table tennis all seem to have their own bluebooks or equivalents, whether based on a dominant manufacturer/s, a joint venture between players, manufacturers and/or organizers, etc.
And putting it in easily updateable chapters on here or other place like your own website would be tons easier than the old school origins of those other games/hobbies (magazines, reviews, association ratings, etc..)