Phones can be purchased through your company as a perk using pre-tax dollars, as everyone uses their phone for business.
And business expenses, like a new phone, are usually above the line, meaning you essentially get a discount of your marginal tax rate, you don't just get it for free.
Your total expenses are less than half and the average phone age is the same while being adapted to everyone's needs. Each device is about 90% as good as the thousand-buck ones (assuming no one has special requirements, like if you're really into photography then either a camera or a top-of-the-line phone does make sense! Exceptions exist for sure)
Or you tell yourself you can get a discount (omg!) by buying it for business and get yourself a shiny new toy every year :). I know some people that do this indeed