Don't bother at $400 that tv is overpriced. I did some fast research on one very recently while doing negotiations on picking one up. The consensus seemed to be that the black original controllers value up to $50 each, and the tv remote about double that, and that TV is missing both. Furthermore the tv itself seems to have some decent damage to it including missing front doors, and even if it didn't like the one I have, I just can't see that price being anywhere near reasonable.
I mean if you have to have one just to have it, go for it, but I'd wait for something in a lot more nicer shape, preferably with the parts (remote and 2 controllers) it came with.
Mine when I got it was $225, I was told that $300 would have been a fair offer. Mine has all 4 feet, all the doors, the 2 controllers, and the remote. It came with 7 games of which none were worth more than $1-5 at best so they were no factor into the price. I personally wouldn't pay more than $200 for it max, and even then I'd shoot for less since it's testy and damaged.