For $66. I think it's worth buying. No offense, but I think the pointer/dial types are useless.
Remember, when finished do not wind the setting back to zero. If it's a 250 ft./lbs. wrench leave it at 30 to keep some tension on the spring.
Having said all that you could try Home Depot who sell a better brand. Husky. But it's probably $100., but you never know with Home Depot.