Brian - I can't rememeber the exact phrasing but there is a new ACE coaster category to compliment ACE Coaster Classic. It's meant to honor coasters that are not classics as ACE defines them but rather were influential or "milestone" coasters in our history.
SFMM's Revolution is another that has recently received such a plaque. So it wasn't that it took ACE long to honor Matterhorn...it's that they didn't have a category to place it in until now.
Nice try Brett, you trickster. Fortunately, I figured out the err of my ways halfway through the last Magnum thread. Should have never let myself get sucked into that blaze! You know, I even hesitated at bringing it up here. What can I say? I'm a jackass. ;)
Personally, I think Silverwood's Corkscrew is much more deserving of a designation than Revolution. Being the true first successful modern looping coaster, and still run exactly as it did when it very first opened, is much more significant in my book than a ride that was just an evolution of an already proven concept and currently not run or maintained even close to as it was when originally opened.
And I've been saying for years ACE should acknowledge Matterhorn Bobsleds, glad to hear they finally realized out of all the steel coasters out there, this is the most deserving of a plaque.