Before my Volt, my cars have had HomeLink for 15+ years. I bought a nice transmitter, 3 buttons that clips on the visor (or you can use the one that came with your garage door if you can find it) for $25 on Amazon, programmed it in 30 seconds and have not missed HomeLink one bit. I thought I would miss it, knew the Volt didn't have it when I bought it, but I don't. Obviously everyone is entitled to their opinions, for me it's a non-issue.
Also, if you'd like to hide the transmitter just put some velcro on it, stick it up and under the center console and that will work as well.