That series of MX tractors are compareable to the 4020's or 4440's of the day. I believe it will be around 40 yrs from now. It's not all full of electronics to give problems down the road. Has a proven performance / relieablity record also.

On a side note - most 4440's could generate some pretty good hp - If your 4440 is cranked up, it will not compare to the MX135, even with FWA. But if it's a stock-normal 4440, the FWA mx135 will pull even with it.