Series 3 will not get watchOS 9 but it is still in Apple Store. If someone buys it today, can he/she even use it with coming iOS 16, 17? Seem like so risky to buy Series 3 now since it can suddenly become rubbish after 1 or 2 years.
I guess the coming new cheapest Apple Watch (may be just SE) will be much more expensive than Series 3 price. If Series 3 still can connect to latest iOS for like next 5 years then it is still a good deal.