They have a predatory business model. “Hey we’re cheaper than the competition”. Once you’re soaking in it and need features, they have options but it’ll cost you. I reckon they have slick sales people who know how to pander to the egos of middle management as well. You know … The people who don’t actually have to use the tool but sure like to feel like they somehow matter.
The switching cost point is profound and real. You might just see that same dynamic at your place of employment.