Torn on this one.
Have seen it assembled, and- just my opinion- a nice build, but compared with other UCS sets I don't feel it is in the upper-class... again, just my opinion.
Going against it- there will always be some x-wing version kicking around, one way or another. Unlikely one this "epic", but one available nonetheless.
Going for it-
Just watch the "Force Awakens" preview and see how significant the X-wing is to all the SW action coming. Surely that will help with this set... but surely it will mean more X-wing iterations to come. More variations = diluted investment. Example: it would be surprising to see another SSD available, in any format. If you love that ship and demand it for your collection, get ready to shell out $1,400+ (just wait). If you love the x-wing- but can't afford the Red-5- you will have more affordable options at a lower price and less piece-count.
I am a fan of Batman, and Legos- but I noticed Batman is now fighting a gorilla in the newest Lego set. A gorilla. Point being: Batman is here to stay, from his epic battles with Bane and The Joker, to him riding around in a ridiculous vehicle battling a giant monkey. This makes Batman, as a stand-alone investment, an unappealing one. Diluted, diluted, diluted.
It's something to keep in mind with the Red-5.
A hell of a set... and certainly deserves a place in an investor's portfolio. But how heavy a hand to play with it is questionable.
So, again- I'm torn on this one. Definitely in for a few, but cautiously optimistic on long-term gains relative to other $200+ sets..