You can do different things with a curry paste than the instructions on the label tell you - you can add different ingredients, coconut milk, peanuts etc, etc and it will taste different to what it tells you on the label. If I am having people round for dinner then I'll liquidise garlic, galangal, lemongrass, kaffir lime and herbs and spices to make my own paste but if I am having a quick midweek curry then I'll use my favourite commercial paste. Also there are a range of pastes such as red, green, yellow, penang and massaman which are all different. Pastes are fine, just avoid the jars of sauces.