It looks like Intercom is one of the most costly monthly services. I think support is of huge importance, but I'm curious how you justified to yourself that it was worth the cost to use Intercom over, say, email.
For Cushion, I use Intercom to handle support, in-app feature updates, newsletter emails, user tracking (tagging to follow up with feature updates), automated emails (trial expiring, etc), and a slew of other things. When I added the cost of that up across other services, it ended up costing more than I'd pay with Intercom. Also, I really love Intercom and their team—they're doing great work. Trying to handle support via email would be a nightmare from simply an organizational standpoint—I tried it for a very short period of time.
Also, I mentioned to them that the cost was becoming a bit much for me as a solo dev, so they worked with me to build a custom plan that I could afford. I couldn't recommend Intercom enough.