I'm not too sure that the cost is that much.
You can get a certificate from RapidSSL, a division of GeoTrust, which itself is a division of Symantec,
for $60 USD a year as seen here
https://www.rapidssl.com/buy-ssl/ssl-certificate/.
This should make the "meet and greet" sites secure enough for Chrome not to complain.
At $60 a year is only $5 a month, and many people spend at least that on non essentials each month.
That said using HTTPS does require more from the server hardware and someone does need to install the certificate.