Xfinity NOW Internet Support

Xfinity "NOW" Internet. Is there anyway to get a better Gateway other than the Used 14 year old ARRIS BX3 TG1628P I was supplied? This unit is not even supported by ARRIS or Infinity anymore as far as firmware and security updates, very unsecured and unsafe. Kind of sad and scary to have an unsecured internet Gateway ?

After using the only support you can get for prepaid “NOW” internet; which is “Chat”, for over an hour I got cut off during shift change I'm guessing? She was saying we will get you a New Upgraded Gateway and have it shipped to you right away and for me to hold on while she gets me the order number, then I was simply cut off from the Chat ! Was Xfinity NOW Internet simply created to extend its Free Xfinity WiFi Hot Spots Nationwide?