There's truth to this: as with all new product categories, there's some education that needs to go along with the sale, and budget that needs to be found, that doesn't currently exist. On the whole, we haven't found this to be a large challenge so far. Most people look at our product, see a very fair exchange of value, and are happy to pay.
However, that isn't why we built On-call. We built it - along with many other reasons - because it's part of the trifecta that we think you need to do incident response well:
1. A way to alert people that something is wrong 2. A way for them to respond, resolve and learn from the incident 3. A way for them to communicate to their customers about it
We have built all of these respectively in On-call, Response and Status Pages. Consolidating all of these into one cohesive product makes obvious sense, to us at least. We'll see what the market says!