I think DLSS (and FSR and so on) are great value propositions but they become a problem when developers use them as a crutch. At the very least your game should not need them at all to run on high end hardware on max settings. With them then being options for people on lower end hardware to either lower settings or combine higher settings with upscaling. When they become mandatory they stop being a value proposition since the benefit stops being a benefit and starts just being neccesary for baseline performance.
Got my 9070XT at retail (well retail + VAT but thats retail for my country) and my entire PC costs less than a 5090.