I was looking on eBay at 5 screw NES games and came across something weird.

There is a copy of Pro Wrestling up and the seller is asking $109. I thought that was insane, so I did a search for completed, sold listings. Sure enough a copy of Pro Wrestling sold last week for $119. There wasn't any indication of it having a Famicom converter in it. As a matter of fact there wasn't really any description at all.
Then as I searched further there were copies that sold for under $10.

What could be the cause of this? Am I missing something?

Its ebay dude. You get alot of goofy prices all the time. Some guy sells a copy of said game for X amount others follow suit. Than again it could be the same guy selling a bunch of bad cartridges or something along those lines.

I hope that copy came with a mint unpunched box and a perfect manual.

Nope. Game only.

http://item.mobileweb.ebay.com/viewitem?itemId=281049443824&a...

You don't know what 5 screw means?
Awhile ago NES collectors figured out a new way to over-inflate the value of their games.
Around early 1988, Nintendo changed from making NES carts with 5 Phillips screws to using 3 security screws.
At least, that is what I assume judging by a list someone made of games in both variations, noting the rarer. It generally followed a pattern that games released closer to early 1988 were more common in 3-screw carts (newer games starting their production run in 5-screw), while order games where more common in 5-screw (being phased out during the shift to 3-screw).
Maybe Pro Wrestling was more popular than I thought, but I'd have thought it to be more common in 5-screw (without actually looking around). According to GameFAQs, it was released in March 1987 (along ways away from 1988. Then again, we should probably take GameFAQs dates, especially on non-JP versions on pre-2000s consoles, with a grain of salt.), and it didn't seem like it was super popular to warrant mass reprint into the 3-screw days. Or was it?

All I know is that I have the same copy as the one for sale. Even if I could get over $100 for it, it would still be difficult for me to part with it because I've had it for so long. I know I can always get another copy, but this one is the one I grew up playing. I put many hours into Pro Wrestling.

I never said I wasn't familiar with the 5 screw. I am very familiar with the 5 screw. Hence me stating that it wasn't a copy with a Famicom converter. If you read my question you would have seen that the issue was the fact that $119 is an insane price for Pro Wrestling no matter how many screws.

I could not tell you why that 5 screw version sold for the ridiculous amount.

Here's one for $5.

Edit: Seller relisted it

Yeah, Pro Wrestling is not a rare 5-screw. Sounds like somebodies bidding up there own auctions or something. If you want a rare 5-screw, look for Mike Tysons Punch Out or Mega Man.

The fact that it was resisted would make me assume that the first auction was BS. I'm going to watch this one to see how it ends. There's another auction for the same game $109 buy it now. Man I wish NES games were actually worth that much. At least when I die my kids would have something of value that I could leave to them. Not just tons of worthless plastic.

Okay. Just making sure.
The other listing doesn't say the screws.
So the $119 bid must've been by an insane collector.

As to Famicom adapter games, I suppose you know they were only used in first print runs of launch games.
I'm just kind of curious if those first-print runs were for all launch games or just those identical between Japan and US. (Kung Fu and DKJr. Match had changed titles, and Ice Climber was censored. So, did those still use adapters?)

There are rumors that other titles had adapters, but it hasn't been confirmed. That's the only way I could see a Pro Wrestling go for $120.