Nothing wrong with buying previous gen technology though. At least from Tiger Lake to Alder Lake, I think the performance uplift is more than 10%, but may not be worth the premium. Alder Lake laptops are likely to cost more, especially if DDR5 is used, and also a possible higher motherboard cost as ADL chips have a higher peak power draw than previous Intel based laptops. There is a severe shortage of DDR5 memory now, which is probably why you may not see Alder Lake based laptops that soon.