The first curries I ate were the 1970s dehydrated Vesta boil-in-the bag thingies. Thought they were great but soon graduated to proper cooking. Around the late 1980s I tried a Vesta for old time's sake. It was truly a revelation how nasty and inedible they really were...
Am never tempted by ready meals - all that cost, all that packaging, and the knowledge that two thirds of what you're buying is simple carbohydrate that is way, way over-priced.
My failing (seeing that this is a confessional thread) is to buy a range of things from the deli counter and at home add cheese, olives, sun dried tomatoes, pickles, crusty bread and an interesting beer. Very nice but neither cheap nor healthy!
There's an old adage that you should never go food shopping on anempty stomach!