I happened to bid during the last 30 seconds. I had gotten a notification on my iPhone that the auction was ending in 15 minutes, and I was surprised to see the engines still under $200. I placed a bid of $210.59, with the hopes of flipping it for $300. Someone else bid in the last 10 seconds, so I lost it out then. This morning, in hindsight, I should have gone higher, with the intentions of flipping them for $349.
FWIW, I've been watching postwar Lionel for over 10 years on ebay, and the 'hot today but not tomorrow' phenom is pretty interesting. I long believed that there is some money to be made, but haven't really tried it. Shipping is something to overcome too, since shipping can easily run $20 on a pair of F3 diesels.
The interesting thing about the Lionel 'hot today but not tomorrow' is that the market does rebound, but guessing when is the hard part. I do know that the reissues by Lionel is depressing postwar prices greatly, but an article in Classic Toy Trains can cause prices to spike tremendously.
I suspect it is going to take me a long while to hone my skills and be successful with finding trains on ebay for the sole purpose of flipping on ebay. And when you are as dumb as I am, it is going to be a serious learning curve, LOL.