Coolant preferance?

I am going to have my coolant flushed today and I have considered stoping by a toy delarship and picking up coolant from them. It's not cheap but I was wondering if it is really worth it compared to prestone and pretty sizeable cost differance.

 

Not sure about worth, but I am about to flush out the Toyota coolant and replace it with Prestone. I hate being at a dealerships mercy.

That being said, I am also about to do a trans pan drain and fill with the WS fluid. Sticking with the WS fluid as I didn't want to do a complete flush on that. So apparently I pick and choose what I want to deal with