Well, you should check the inflation indexes. The no. 24552 scale TMCC F3 set from 3/2005 is now over 17 years old. Looking at the prices, adjusted for inflation, this set (I also have this set), which has an A-B-A and only one powered A unit, would cost about $1,700.00 today. The matching powered B unit would cost $570.00 in today's dollars. The current F7s are available at $1,180.00 for an A-A with both engines powered, and a powered B unit is available for $540.00.
So in fact, the F-3s from 2005 were not at all a fraction of the price of the new F7s. Really, the F7s are no more expensive in any meaningful way. If you think the pricing on the F7s is outrageous, then you paid an outrageous amount for your F3s as well.
breezeinup: Uh, no and maybe I should have explained my purchasing situations more clearly. I did not buy my Union Pacific TMCC F3 ABA set when it first came out in 2005. I purchased it 3 years ago on eBay, NIB for $550.00, considerably less than what they went for in 2005. Then a NIB powered F3B about a year later for $160.00, also less than the $299.00 they were going for when first out.
So for a total of $710.00, I was able purchase an ABBA set with an additional powered F3B vs a current F7 ABBA set with a powered F7B for $2,260.00, using your figures above. The actual ABBA set would cost more, because rather than two powered Bs, one would likely be powered and the other, the non-powered Super Base, which costs more than the powered B.
So, for the older TMCC set, I paid less than a third of what the comparable Legacy set costs right now. True, the Legacy ABBA set would have the additional powered A. But who needs six motors? I have a small to medium-sized layout and 4 motors is more than enough to pull my UP passenger train.
Note: (12/15/22) The pricing in Charles Ro's list is evidently erroneous. It's $495 for the Super Base F7B and $540 for the powered B. Not the other way around. So, the powered B is $45 more than the Super Bass. Still outrageous.