A fantastic source for premium Bible is, of course, evangelicalBible.com. On their NIV 1984 page they have several good Bibles still available. They also do not overcharge just because the translation is getting rare. I picked up the Cambridge bonded leather single column Bible for just $80. Also, shipping is free for anything over $75.00. While bonded leather isn't a premium option, this is a particularly nice one. It is pretty flexible and I found it very readable. There are photos of the two-tone imitation leather one here. The inside text block is the same as the bonded leather.
If you know of other good 1984 NIV Bibles, please leave a comment.