I've got a bit of an eye for shite as well, I spend my time trading in stuff people want shot of or it's being dumped.
What I always think about is that, like you, I'm always amazed at what people get rid of for little, or throw away, without giving it any thought - and I wonder how many things I must have walked passed or not chased up that could have been worth a good bit of cash.
Sometimes I can walk around a carboot and find nothing, but there must be tens of people who walk away from the same one knowing they have made an easy couple of hundred quid. Other times I turn up to the embers of one boot on the way to the start of another and find some real gems that hundreds of people must have walked past.
I guess that is what keeps it interesting. Good find, I hope it does well for you.
I had a good weekend as well