Guys, is it worth to hunt for a T480 with i7-8550U, 8GB DDR4 RAM, 128GB SSD + 1TB HDD, MX150, or go for a T490 with i7-8565U, 8GB DDR4 RAM, 512GB SSD, MX250? It's much harder to find the former, and I'm not sure if paying more for the version of the T490 with i7-10510U is worth it.