The L245DT is a great tractor - made well and built to last a long time.
Back when the L245DT was current (early '80's) Kubota was just starting to really penetrate the Amercan market. Many customers who were interested in 20 pto horsepower tractors back then bought little John Deeres or Fords or Masseys, all made in Japan by Yanmar and others. Kubota gained some market share by selling a better-built product for slightly less money than the competition. To be fair, Yanmar quality was also very high - they sold many tractors under their own name until JD "discouraged" continuing the Yanmar line in the US. Yanmars sold here are Green now.
Over time, Kubota became known for very high quality - the word got out, and their prices edged up taking advantage of the pump-priming they had done.
Although an L245DT may be a less-bright shade of orange, it is a fine example of a product made right. Take decent care of it and it will last forever.
Your observation that many here are BX owners is right. The internet-as-household-appliance didn't exist when the L245DT was built, hence Muhammad's fine board didn't either.