[bcrosby95]

Can you be more specific? Because if you mean scale... meh.

For the most part, scaling a system is fungible across features. In particular, in a monolithic system, if I had to add another server due to logins, I just add another server. A side benefit is if logins are down but account balance checks are up, that extra server can pull that duty too. I don't need to say "these computing resources are only for this feature."

Isolating failures is way more important.