Excellent points!
Our Client Experience (CX) Team utilizes all of the above for their dealer support offerings. Heavily agree on providing more than just phone support. And in this era of the customer experience and digital age, it would be concerning if that was not offered — and likely harmful to your entire experience.
We also use Slack in our internal office communications, so we see the value there. It would be interesting to see dealer-specific Slack-based communications. Something we could certainly look into.
Ultimately, we'll do whatever works best for the dealer — we're flexible like that! Prompt response is key as well. As the video states, our CX Team averages less than 5 minutes for a follow-up. Dealers are quite happy with that 
Truly live chat provides such a great value. Even Netflix has a live, dynamic chat team!
We would love to hear any more dealer-specific vendor support preferences from you all. Until then:
Cheers!
The AE Team
