Attendance at this week’s CES gadget show in Las Vegas fell more than 75% compared to its previous in-person event two years ago, its organizer said Friday.

The Consumer Technology Association said on the show’s closing day that more than 40,000 people attended the multi-day event on the Las Vegas Strip. That’s less than a quarter of the more than 170,000 the CTA said were there for its 2020 convention.

The COVID-19 pandemic led the CTA to take 2021’s conference online, but the trade group decided eight months ago to bring a physical CES 2022 back to Vegas.

That proved challenging amid a global spike in infections caused by the fast-moving omicron coronavirus variant that emerged late last year.