IT/networking solutions are predicted to remain hot in 2021 as work-from-home situations persist. Meanwhile, high unemployment and civil unrest likely fed the need for surveillance cameras. Increased package delivery theft likely spurred the video doorbell market, which took the biggest leap upward of any category of equipment — from No. 8 last year to No. 3 heading into 2021. 4K/8K TVs fell from the No. 2 spot to No. 10.