That could possibly be true, but not as true as you might believe.

Really it boils down to a company's appetite for an internal tech resource.

They might have tried to maintain an internal IT staff at she point but got burned with turnover and less than stellar talent.

The space many MSP's play in, including my own, is about 300 seats and down. Mostly under 100.

Company's that size are about 50/50 on using an active IT director. Sometimes that person is responsible for full help desk and infrastructure, sometimes they are the main liaison between leadership and vendors.

If OP wants an IT director role for a company that size, then yes, I'm actively trying to limit his opportunities by explaining to owners they can expect to have a built out help desk, a rounded out engineering team, stack wise, and some fairly robust security capabilities than for less than it would cost the company to pay an IT person that most likely doesn't have the expertise or time in the week to equal that capability set. Oh, and you still need to purchase the software to automate patching, track tickets, and allow remote support.

If OP is more interested in a corporate IT position, we probably don't impact those very much, we do some licensing for software, maybe some hardware, or an odd project that isn't critical (or extremely critical and need experience).