You know, I've been going to the gun shows in MI for a few years, and it seems that depending on what your market is, you may or may not want to spend any time there. The more rural the show, the more likely some local person will get a table and put some stuff worth buying on it.
I collect S&W revolvers -- I have over 50 and my knowledge of the guns is somewhat strong in comparison to the average buyer. I bought guns that other people glossed over for the entire weekend. I purchased a $325 629-1 4" magnaported at Birch Run, cleaned it up and put original wood on it. I bought a wonderful 1960s Smith 41 22LR for $600, with the olympic compensator, and my most recent (at Gibraltar!) was a 25-5 (45 Colt) with presentation grips that probably had 50 rounds put through it for $500 with leather, speedloaders, and a few other accessories. Without being a S&W collector and having an in-depth knowledge of the rarity of some of the guns (and the desirability), I would have never spotted them, and frankly, no one else would pay this but for my collection, I am very satisfied. Some are easy to spot -- I bought a NIB Glock 20C for $340 and a NIB XD compact for $370 when they were recently released. The Glock was at the silverdome.
That represents the total fruits of my labor for three years. But, I'm selective. I've seen other good deals that no one is taking. I have been offered a ported commander-sized stainless 1911 from Springfield NIB for $470, a wicked nice Colt Diamondback 6" with a 2x EER scope for $550 that looked brand new, and various other good buys. I can't spot most of them, I believe.
I believe the deals are still there. Look for people carrying a case and ask them what's in it or tables that look like no FFL, just personal items. Have cash in hand and flash it when you're dealing. Be fair and curteous and deals are made.
That being said, the silverdome is a wasteland and I've never even heard of a good deal at that show (besisdes mine above). Seems like a lot of business is done on the least expensive guns from some of the state's less liked retailers. You can't even approach a certain table that has a lot of inexpensive handguns from manufacturers that are out of business (Standard arms, American Derringer, etc.). At least that company finally repriced their pre-ban hicaps down to, oh, say, twice the price of a new mag instead of 10x. Oh yeah, and a worked over Steyr AUG for $6K. Sign me up.
Anyone ever found a deal at the dome?
-Dan