I've long subscribed to the philosophy that you should buy the cheapest tool you can find and use safely, use it until it wears out, breaks, or your skill surpasses the capability of the tool - and only then should you spend money on high quality tools. Too much money is thrown away in the name of "buy once, cry once" only to discover that you don't need the capabilities offered by the top of the line options.
It depends on the tool. Personally, I have a ton of Rigid tools. They all work really well. I replace them with Rigid if they break, actually, because my batteries work with Rigid.
But, my table saw is a good table saw, because I want it to be safe, I want it to cut straight, and I want to enjoy using it.
My bandsaw is a good bandsaw b/c I need something that can cut thicker wood sometimes and don't want to deal with blades breaking and popping off a cheap saw.