Muhammad,
How about a "ratings survey" of implements used, mfrs, models, usage factor of 1 to 10 or 5 star type system, etc.?
This way we can rate one mfr. against another, and one implement against another. ex. I bought the box blade, used it once, then sits on the side of the shed for 3 years or my 6 year old, never been used 12' super-duper rear mounted snowblower is waiting to move some snow down here in Miami, Florida...
For example we may find Bush-hog Company ranks #1 for their rotary cutters, but #4 for loaders, and XYZ Co. ranks #1 for price on their rear blades, but # 10 on reliability of their model 0 blade because the welds broke 5 minutes after plowing marshmellows...
Maybe this can be an on going survey, because of market & quality changes. {Then you can contact these companies for advertisements for your site... Revenue!}
P.S. - Using the same idea, one for tractors, mfrs. models, what a purchaser compared with before the purchase, why they settled on the one purchased, 1 year later... are ya still happy?, etc.