I bet I could eat an entire box of hamburger helper. I know I could eat three cheezeburgers at a sitting. Once in a rare while I indulge in junk food like that. But beef tenderloin costing maybe $25/lb naturally tends to take care of the whole "technically you only need 2 oz protein per day" or whatever it is exactly.
Yes Chinese restaurants are famous for using interesting (gross) parts of the chicken to increase profits, but for how little chicken I use in a family sized stir fry I can afford a clean probably not salmonella infected boneless skinless organic chicken breast.
I mean, sure, for $10 I could eat hot dogs until I puke and/or gain two pounds of fat, but I'd rather eat a nice small grilled steak.
As a rough guess the more you use your grill and wok and the less you use your oven, toaster, and microwave, the healthier you're probably eating. Also a wok looks expensive as an experiment, like a couple meals worth of food, but unless you do something crazy it never wears out and its cheap compared to something like a complete all-clad stainless steel cooktop set. Also if you're trying to learn how to cook, most vegetables will not kill you with food poisoning no matter how hard you try, so some vegetarian stir fries are a delicious place to start.