Re: Value of trailer
Usually the easiest way to get a better or newer trailer is to find a cheap or free boat that has a trailer you can use, then switch your boat to the newer trailer and put the other boat on the lesser trailer or just take it to the dump.
I've gotten a few this way, but have had no problems selling any unneeded trailers for $750 plus, it all depends on it's condition and the type of trailer. I just sold a tandem bunk trailer, galvanized, with new tires, axles, springs, and all hardware, no winch, for a 19' boat for $900, I had listed it at $1000, the first guy to look bought it, I had dozens of calls.
I sold two 18' roller trailers this weekend, both were rust free, and from the late 80's. Both were in good shape, but with original tires and rollers. All lights worked, and the fenders were still intact. They were listed for less than a day on CL before they sold for $750. I had three guys here after the one trailer within several hours of putting the ad up. First come, first served in cases like that. I have one more left, I suppose it will be gone by the end of the week. I have about 15 emails on it already.
I actually sold two boats that I had intended to keep, but got offers of far more than I would have ever asked for them so they went. So I had a few extra trailers around to sell lately. That and a few free boats picked up for their motors left me with several others this year then I needed.