Not everybody needs a secured presentation, and if you can create a page manually, that doesn't need access control, a CRM connector, slide behaviour tracking, activity notifications and/or lead background information - and if it looks great on mobile and other devices - then by all means!
The problem we solve is not the hardest problem in the world. It simply takes a lot of time to get around it, to maintain it and to implement all the 'nice to haves' into it. As we like to say in the XO office - "it's simple, not easy"
If you can do it yourself, without hiring another person for much more money than the existing solutions out there cost; and if it doesn't keep you from your main focus - then that's the way to go.
A monthly subscription is just another thing I need to manage. Also, I feel like I am paying for a time where I may not be using it yet (there's a time delay between setting it up and actually going out to investors).
And the jump from $89 to $199 just for a CNAME is a little high as well.