Big anniversaries like a 125th only come once, and how many companies make it to 125 years? Not too many.
Were I in their place I’d have outshopped (There’s a traditional railroad term for you!) an affordable 125th Anniversary set built around a LionChief+ Hudson and a series of Madison cars…
Just my opinion, but I sort of feel like Lionel has diluted the importance of the anniversary dates at this point. I’d agree that 125 is probably considered huge, being 1 1/4 centuries.
Of course they did things for the 100th (famous gold plated Hudson, both “Century Club” programs on either side of the 100th Anniversary, etc.). I don’t recall them doing anything for 105 or 110 years (though they might have), but they certainly did for 115 (a silver plated Berkshire), and they did some things for the 120th. In fairness, (not to just pick on “current” Lionel), MPC of course did things like the 75th (which made sense, IMO) and 90th Anniversary (really??) sets too.
I thought this set of Santa Fe F3s and re-issues of some of the classic post war freight cars was a nice set, along the similar sort of “celebrate the heritage” train of thought for the Hudson with Madison cars set you suggest. Maybe it’s not considered in the “affordable” realm though. (though the catalog list price was $1100, I think I paid something closer to around $800-$900 or so for it) Had this not been LionChief 2+ (TMCC/Legacy remote compatible), I doubt I would have gone for it, much as I am not considering that “what if” NYC F3 set in this catalog that is only conventional, without even a horn included. (but the transformer they include has a horn button! )
My point being, the way Lionel has been doing this, it’s only 5 years until the 130th Anniversary offerings!