Really, they use it because that's what they are used to. Or mainly that's what was forced at work.
For example for years we've used Outlook Express, then people moved to Outlook. Everyone uses Excel, Word, etc. - because the company provides it, and people if they want to finish their work at home, would use whatever they learned.
I for example learned so much P4Win (the discontinued Perforce client from years), that even if it's less performant (syncing for example, because it's done by 4096 bytes), I still use it more than P4V (the new client), because I simply know it all, so much that I feel P4V as step-back (it's not, but because of slower redraw it feels that way. P4V is way faster than P4Win, and multithreaded).
So color me stupid, but since then, I'm using P4V for heavy tasks (after carefully, and consciously clicking here and there), and then for day to day things - changelists mainly - I'm with P4Win...
Sorry for dragging into this, but I'm just showing an example. And at home for my projects I don't even consider perforce, never use it. (But if it was like office app, I might've).
So why would I want for my productivity tools (which I don't have much fun, but more work) a change?
For example for years we've used Outlook Express, then people moved to Outlook. Everyone uses Excel, Word, etc. - because the company provides it, and people if they want to finish their work at home, would use whatever they learned.
I for example learned so much P4Win (the discontinued Perforce client from years), that even if it's less performant (syncing for example, because it's done by 4096 bytes), I still use it more than P4V (the new client), because I simply know it all, so much that I feel P4V as step-back (it's not, but because of slower redraw it feels that way. P4V is way faster than P4Win, and multithreaded).
So color me stupid, but since then, I'm using P4V for heavy tasks (after carefully, and consciously clicking here and there), and then for day to day things - changelists mainly - I'm with P4Win...
Sorry for dragging into this, but I'm just showing an example. And at home for my projects I don't even consider perforce, never use it. (But if it was like office app, I might've).
So why would I want for my productivity tools (which I don't have much fun, but more work) a change?