Yes, but also this isn’t strictle a case of “convenience food makes price go up.” OP is making veggie burgers, not beef burgers, so you really should be comparing “Gardein pre-packaged veggie patties” to “black beans + brown rice + bell pepper + onion + mushroom + eggs + chili powder + cumin + bread crumbs etc” that you’ll mash into your version of a DIY veggie patty. The pre-packaged ones will still probably be more expensive, but at least you’ll be comparing apples to apples.