I'm on the original setup as well. I have nearly finished my ferry from Wichita to Europe via the northern route, and have deselected the 430 from day one, as well as the GPS augmentation on the original system.
VATSIM is a bad excuse in my opinion. While I fly on IVAO, I have never ever had any issues flying classic aircraft with classic navigation methods online. I have flown over the pond with the A2A Stratocruiser navigating by stars and weatherships, flown the 707 with INS and radio navigation, and was never turned down by ATC. Sure working an aircraft which is unable for certain procedures increases workload on both sides (hold over...), but also the fun factor. Because it's different and not the same as other aircraft, packed in a different shell. On the Dukes I'm simulating a personal aircraft that has been updated to the latest avionics (and would love to get rid of this RNAV receiver).
For the Starship the original equipment is fantastic. Simbrief route import via floppy would be nice, but that's all.
Of course, only my personal opinion.