What determines what is good and bad is really do you like it? A higher dollar torch will cost more because of the materials used in the production of the torch as well as where the torch is made.
It is undisputed that a blazer torch is the top of the line torches. This torch is made in Japan and has been for 20 years so they know what they are doing.
Another thing that makes a torch cheap or expensive is the size. The larger the torch the more expensive usually.
Reality is you get what you pay for in life. Cheap in the long run can cost more over time, making a higher $ purchase actually cheaper in the long run.