My wife likes to check out the local estate sales listings online. While most of what she's looking for is things that she wants, she also keeps her eyes open for tools. I am fortunate to have a wife that encourages me to buy tools. She found me this, for $125. I've needed to up my dust collection game for quite a while, and this one is small enough that I was able to find a place to put it.
The best time to go to any estate sale is the last few hours. They might have already sold the items you want; but then, if they haven't. they'll sell them to you for half price. In this case, I got it for less, because I bought some wood too.