Seriously, 95% of the sites on Flippa are either a scam or are being very misrepresented.
Go under sites selling for like $5k and it's more like 99%.
The "Flippa verified" Google Analytics are worthless. It's crazy easy to buy some fake traffic. It's also not hard to fake Google Adsense earnings to get the "verified" by Flippa.
Flippa doesn't care, they make $30 off each listing. Scammers bid on each others' auctions to jack up their ratings and selling totals or use multiple accounts then try to make a $1000+ sale all the time.
Unless you're looking to pay in the $10k+ range, you're not going to find many sites worth looking at. Once in a while a good one comes up but it usually is a huge fixer-upper. Unless you're looking for sites to provide backlinks to your existing sites, be very careful.
Even sites sold by "trusted" sellers like the AdSenseFlippers.com guys are junk buys. I've researched all their past sales that were a year or more old under the account they used to use on Flippa and just one out of like a dozen were even still online. Nobody is going to pay $600-$3000 for an AdSense site and pull it down in under a year if it was actually earning what was claimed.
They were probably propping the sites up with backlinks from their private network of sites and then pulled those links shortly after the sale.
Seriously, research past successful sales that are more than a couple of months old and you'll see how many get pulled down or still have their web stats public and you can see how the traffic literally went to zero weeks to a month after the sale.
I still browse Flippa once in a while when I've got nothing else to do but for buyers, it's really a waste of time. Who wants to dig through so much junk? As a seller, it's better (great if you're a scammer).
My opinion anyhow. It's your time and money, knock yourself out.