Time to give up my DW, I mean DT (Dear Truck)?

Just replaced my 1999 Silverado 1500, at 209,000 it got killed by an errant BMW. I had no worries about the life left in that 1500 series truck as I bought it new and it had been maintained good. Due to cash flow and needing a more capable truck, I now have a clean 1988 Chevy C3500 dually with 63000 miles. I dont make my commute in the dually. Only you can decide, but I have worked on fleet vehicles with well over 250,000 on the clock that ran fine.