Totally weird. Certain people don't like the tool, then bash the cost. Don't buy it, we can say that about any jig, fixture, even power tool. But don't bash it or elude that the seller is ripping anyone off.
Whether you like the tool or believe it has value in the shop has zero relation to what the tool, jig or fixture cost to make and then sell to make a profit.
I can't cut an aluminum square like this in my shop on my CNC, machine the rest, source the other parts and then put it together for what TSO sells it for, let alone make one to resell at that price AND make money.
My square NEVER leaves my rail. I use it hundreds of times a week when I am busy, at least once a day when I am slower. The way I use the square is I bring the track to the ply stack with the square on it. I am not lifting 50 sheets anywhere, so saying a table or anything else like that is better just makes no sense. It's not how most of us use the square. Heck, I could say why ever buy a track saw, I can mark two hash lines and just use a piece of ply as a guide and use my sidewinder, one similar complaint I read here about why they don't use the square.
The TSO and most likely any other track saw square does what it is supposed to do, saves me loads of time.
The track saw square helps me cut ply consistently to within 1/32" over 8 feet over and over, most times better, closer to 1/64" . Anyone that needs better might be a tool collector a type person that tests their miter saws claiming a 1/128" deflection, claiming they can't get good miters because of it. Anyone looking for the type of precision I have been reading complaints about here for the square probably should not be using a track saw for super accurate or precise work in the first place. For me a track saw is not a hyper accurate nor hyper precision tool and I cringe when I see the cabinet installers on site use it as such. Many, if not most times no good comes of it resulting in shoddy work.
Possibly the seller hints the square is more than it is, certainly some readers here claim that to be the case. I never was under the impression TSO claimed it to be some super duper precision making phenomenon. What I got from the website when I purchased it was that it was a square to line up the tracks saw on a clean edge, ply normally and the rail would shoot out at a 90 to that edge. And the square does do that.
This square has value to me and it makes me loads of money, by saving me time. I use it within it's limits. It saves me making those thousands of hash lines 8 feet apart over and over and over. At 150.00 It's just simpler to buy it even though I could make one if I chose to. I like my track saw square(mine is TSO), if I lost it I would buy another the next day.