I really prefer to pay 1k$ to get a full time license, instead of 10$ per month.
$1000 is more than 8 years of subscription. And that's without counting the 26.69% of inflation that the US had in the last 8 years, making it actually more than 10 years.
Not only is this a long time to keep using the same software, you also have good chances that the company has gone bankrupt by then.
You do see the inherent tension in your reasoning here, don't you?
If your threat model is that the company might go bankrupt, how could that possibly weigh in favor of procuring software in a way that requires the company to remain in business for the software to continue running?
(Also, you deeply misunderstand how inflation works. High inflation makes future outlays higher in nominative terms, not lower.)