I've researched the cost of updating a Northern to DCC with sound. Motor $40, Tsunami sound, decoder and speaker $150 or a total of $190. The new FlyerChief Northerns are coming out in December for about $500.
I will be looking at the Allentown Show, but if the price for the old stuff is too high, I'll just wait for the engine I have on order. If I do find one, the old updated engine would be converted to 2101 as the Freedom Train engine, while the Flyerchief would be converted to 2100 Rambles version.
Opinions?