You've got to be a little cautious when using craigslist as there is no one watching over it. But you also have to be smart about it. Obviously if a deal seems too good to be true it probably is! Its a classified section for used stuff so everyone should expect there is some room for negotiation and when something is listed for $1 its almost always pretty obvious thats not really a price the seller would accept. (wouldnt it be easier to simply throw something away instead of going to the trouble of listing the ad, and dealing with random strangers all to make a single buck?!) Its an ad made to pique your interest and get you talking and negotiating about what the real price might be.
That being said, I've bought and sold a ton of stuff (aquarium hobby as well as lots of other things) and really have one had one or two deals that didnt go quite as expected. I wouldnt say I've ever had a deal really go wrong though. I've had to walk away when a seller wouldn't come down more in price a few times and conversely sent a potential buyer away when they wouldnt come up to what I wanted. But thats how negotiations work for used stuff! Keep looking though as you really can get great deals via craigslist and other similar sites.
I went to a few auctions for the movie studio of Burn Notice and Magic city and they were giving away like thousands of dollars in memorabilia for pennies on the dollar. They finish filming and were scheduled to be out of there in like a week and everything had to go. If they did not sell it, it was going to be scrapped or thrown out. In these auctions, you could literally bid $1 on something and as long as no one bids higher, you pay $1 for whatever it was.
There was a large monument that said " Police station" that was used in the studio and the price was dropped won to $5 and someone won it for $5. This item probably cost several hundred to construct in materials and time.
If I listed something on Ebay for $1 then tried to back out the deal saying it was a joke, ebay would ban you as a seller for not honoring the deal. Seem like a bait&switch. They need to come up with a fair market value and put that dollar amount and negotiate down.
Timeshares will give you a free weekend vacation if you listen to their 2-hour presentation or however it works now. They don't say " oh, we were just kidding, we can't actually give you a free weekend stay at our hotel/timeshare just for 1 or 2 hours time"
People should not list something for a price if it just baits in order to get you interested then switch the terms on you. I think this is very dishonest.
The value of used stuff is not your asking price but the sum of what someone is willing to pay. I expect negotiations to take place for used items.
If you look at used furniture, it cost a lot of money to buy new however if you try to sell it, it's almost worthless.
I purchased a house and the previous owner tried to sell it to me for like 80% of what he paid for it. He also had theater equipment that he spends a lot of money but it was 20 years old and obsolete. The projector had NO HDMI, NO 4K, No 1080P, don't even know if it had 720P or 480I,etc..
He ended up taking the equipment and probably cost him more money in transportation and warehousing than he ever got for that stuff. Who wants to be 20-year-old theater equipment without 4K or even 1080P and pay almost the price it cost while new.
Also, there is some real sicko on Craigslist. There are even people selling used diapers on there! USED DIAPERS. Someone called them and placed the prank call on youtube.
I am hoping to find a rainforest cafe that went out of business and selling the aquariums.