Because the past two redesigns/rollouts were? A trashcan with nowhere to go, thermally, and then an over-designed Ive tower with the whole "premium wheels" and $1,000 display stand silliness. I'm so thankful those models aren't where I live and breathe, and have never needed for my modest vector-based illustration/design work. I'd be inconsolable!

"I gotta buy
what? For
how much?!"
At one time, Apple didn't try to get cute with their workhorse, professional-targeted towers. They were still attractive, for whatever that might've counted for, but they were what they were: large enough boxes with a boatload of ports/slots and an entire side that came off to allow people to cram in whatever they wanted: RAM, specialty cards, a can of corn, etc. They sat on floors or on tables in non-boutique production environments where Stuff Got Done. That they kinda vanished into the environment, vs. perpetually lunging for design awards, was one of their best features, even if we didn't realize it at the time.
Then somebody decided they should be works of art, and here we are. Sometimes "if it ain't broke, don't fix it" even applies to outfits like Apple.