Leaving your vendors hanging is literally taught and practiced among certain circles of entrepreneurs. Though not spelled out in explicit terms, they operate on the basis of "Fuck you, I got mine." They want a perpetual jackpot machine, and will stomp on anyone to get what they want, more money in the pursuit of even more money. They don't operate on the old mantra of "the boss is the last to get paid."
You'll be able to find them a few years down the road complaining that the mean old IRS is being so unfair because of the little bit of tax evasion that's totally not as bad as those real scammers on welfare.
I learned that lesson at the first place I worked. It was an accountant's office and the partner in charge of paying invoices would literally go through the outstanding ones and see which he thought he could get away without paying, even if they were overdue.
So even companies you might think will pay promptly, don't always do so.
You'll be able to find them a few years down the road complaining that the mean old IRS is being so unfair because of the little bit of tax evasion that's totally not as bad as those real scammers on welfare.