I was just coming back on to say this very thing!!! When I said it was for older Lego fans to display it I meant that in more ways than just cost.
You do realize this set has 3,800 + pieces!! That is almost 4000 pieces.
It will take hours just to sort them out to start putting it together. there is probably 2 books of instructions. There is no way a 7 yr old will do this without a tremendous amount of parental help. And it will take hours and hours of building. And also not simple building but the frustrating got to get it just right and hold it just so till you add the next piece building. And then when it is built he is going to have to be careful with it because who wants to start putting 4,000 pieces back together and sometimes when a certain section is disturbed you do have to go way back to fix it.
so if you do get it expect to spend a lot of hours putting 4,000 pieces together with him.
But that's half the fun of the challenge of Legos!
I've got great memories of watching DS master his Lego sets bit by bit.
Would you really want a $400 toy that was "finished" in a day? Think of the organizing skills you learn at that age by the sorting, the knowledge that is gained by learning to read instructions (they're very kid-friendly with examples), the patience that is learned, the pride one feels as a section is completed.
We had a formal dining room table that we rarely used for dinners, so that was usually the "project table." It's ideal to have a spot designated for it so that it's not disturbed and can be worked on piecemeal.
My DS put his first "large" project together at the age of 8. I was shocked at how well he handled it, so I think he could have handled it at 7 also. But everyone knows their own kid and what they are able to tolerate, so that's something you have to judge for yourself.
I agree, he needs to be a Lego freak to warrant it. I always knew what section of Toys R Us I could find my DS.