As someone that has calibrated a lot of torque wrenches, stick with what you have and have them checked periodically.
Ask 10 guys, and you'll get 10 answers and 9 of those answers will be BS.
Three types of torque wrenches for the average guy in their garage.
Beam type. This is your old style torque wrench that has been around forever. Dependable and accurate. A little hard to read and some parallax error can happen if you don't get your eyeball over the pointer. Generally approx 3% accuracy.
Clicker type. Everyone's favorite. Dial it up and feel for the click. They are OK, but need to be checked and used periodically. ALWAYS crank it down to a lower setting to store. If you forget, go "exercise" the wrench by tightening some lug nuts or something like that and you'll probably be OK. Accuracy is usually 4% CW and 6% CCW
Dial Type. These are the most expensive and most fragile of the bunch. Also the most accurate. They are basically a beam type wrench with a dial indicator that measures deflection (kinda over simplified) . They can be very easily overstressed and then they aren't accurate at all. They really belong in the lab rather than the garage, but your Snap-On rep won't tell you that. Accuracy is 2% for the better ones, 3 % for the cheaper versions but some with are available with 1% accuracy.
Treat the torque wrench for what it is... a precision tool. It's not a breaker bar. That seems to be the biggest abuse I see.
The cheap (Harbor Fright) torque wrenches aren't bad. The Snap On reps go berserk when I say this, but I've found just as many bad Snap-On wrenches as I've found Craftsman and whatever brands. It really comes down to the guy with the $40 Harbor Freight wrench might keep it in the drawer with his mics, and the guy with the Snap-On wrench might use it to break rusty bolts loose. Just take care of it. All the tools are crap now.
I have the clicker and the beam type in my box. The SK beams are close to celebrating their 50 birthdays and the Utica clickers were some that I pieced together and repaired (and checked) .