The medium power cards will only work for people with really cheap electricity,mostly in Europe the price of energy is on a constant increase because of the war in Ukraine which has hyper inflated the prices.It would be difficult for such cards to offer good returns for miners who will buy them.The difficulty of Eth is not decreasing it is staying constant in the best case despite the price of Ethereum falling so I don't see any valid point to buy those cards unless you have really cheap electricity.
Even at a 7¢ power rate and video cards available at half of MSRP, it will take 3+ years to reach payback if no other GPU coin saves the day. We would be stuck earning $0.40-0.50/day of profit on a $450 video card (including system parts). That is a 20-40% return per year, which isn't bad and is probably better than ASIC mining, but is nowhere near the 100-300% return we have seen over the past 5 years.