Robocalls continue because there is always some sucker who falls for it. ANY company that uses robocalls to solicit business is breaking federal telemarketing laws. If a company will break the law to get your business, how do you think they will treat you once they get your business?
This was a call from an actual human being who tried to sell me a GE security system even though I told him I already had one. I now think I prefer robos. ;)