I have one Woodpecker item that I wouldn't trade, that's their table saw setup gauge. Pix. I used it to set up my Laguna TS, and occasionally to check fence alignment. It wasn't cheap, and I don't use it much, and you could make something to do the same thing, but the precision is terrific and it is so easy to use that I do use it. I also have their aluminum router plate, which is thicker than average and has a great twist lock system for its inserts. Both items were about $100 each. Of course, I was making better money in those days.
The more I do, the less I accomplish.