When I started looking for a floor nailer last year to do the tongue and groove flooring in my house, I checked the tool websites and got the prices for new -- wow!
So, I went to eBay to look at used ones. I found the Porter Cable nailer listed several times on eBay, one of the more common ones, and decided to do my due diligence and research what folks thought of it. I've been happy with the brad nailer I bought from Porter Cable, and this floor nailer got good reviews too. So, I was going to go back and do the "buy it now" on the $400 version. Except that during my research I found Coastal Tool dot com who had it for sale at $380. So, I figure I would email the seller on eBay, inform him that you can get them brand new for $380 and see if he would take less.
But before I could get back, it had sold. A quick search of completed items revealed that more than eight of them had sold in the last couple of weeks for $400 or more.
I ordered the nailer from Coastal Tool. It arrived several days later, as promised, worked beautifully, and we proceeded to install our entire house in 3/4" heart pine floor over a period of several months. (we had to tear out the old floor first.)
So, having completed the floor, I put my nailer out on eBay. And, within a few days I had an email from a potential buyer telling me that you can buy them brand new for $380 and offering me $300. I got another offer for $330 a day later. I said thanks but no thanks to both of them and watched. And, lo and behold, it sold today for $395.00. Of course, I threw in all the leftover nails I had to sweeten the deal.
I hope the guy that bought it from me does the same thing when he's done with it! Just don't take any low-ball offers, dude.