You know that's an old popular meme in the Apple community...
"That might work for Marco".
Marco didn't come from money or have any connections. He found a job on Craigslist working for a random guy named David Karpe as his first employee. They started Tumblr and he lucked out when it got acquired by Yahoo and made a few million.
But the acquisition happened after he started a blog that became popular, wrote Instapaper, and started a podcast that became popular. I'm sure Overcast was helped by his popularity but if it had sucked, no one would have downloaded it. Even for that he tried three different monetization strategies until he landed on one that worked -- writing his own non scummy ad platform. All of this with no outside funding.
And he lucked up and made money by being an early investor in Gimlet Media but that was way later.
But on a personal note. If I needed it, a $5,000 iMac Pro wouldn't break the bank and I'm just a regular old enterprise developer. That's less than two weeks billable work for a halfway competent cheap software contractor.
Heck my college computer was $4000 in 1992. A Mac LCII with 10MB of RAM, a //e card, a 5-1/4 disk drive, a Personal Laserwriter printer and a copy of Soft AT to run Dos compilers and a 12" monitor. Over the next two years I upgraded it with a larger monitor, an external hard drive, and an accelerator card using money I got doing a contract for a college.