Congrats on the new locomotive!!! At the discounted price, it's one of the great buys out there. Just about all the major dealers have priced this steamer in the blow-out zone at one time or another. With a little luck on timing, both #3751 and #3759 could be had for double-heading at just a shade over the original MSRP of one these jewels. Simply FABULOUS!!! 
Should make us all think twice about dashing out to pre-order any of the big locomotives from the new catalog, unless of course one feels it's an absolute "must have". Having said that though, I'm sure Lionel is trying like the dickens to avoid another round of blow-outs to the tune of what we've seen from the 2011/2012 catalogs.
Next up on the blow-out list... or at least marked down "on sale"??? The Shays and Berkshires. There are WAY too many of those still in the market, and they've been sitting in inventory far too long -- especially the Shays. Alas, no whistle-steam on those... but the Shays always make for interesting sites and sounds, and the Berkshires have a nice amount of separately applied detail on them. Stay tuned, and keep an eye out for your favorite dealer. 
David
