Going for a 30-90 days to a country usually means you rent a short term overpriced Airbnb. With longer visa you can get a normal one-year lease, for most likely the same price.
Staying a year often makes your tax resident which is exactly the kind of headache nomads moving around are trying to avoid.
For example if you own any stocks and become tax resident, then leave and break tax residency, you may often owe an "exit tax" on your unrealized stock gains.
Even stocks in your retirement accounts like IRA may not be treated as tax advantaged by another country.
Still cheaper than going through gov. bureaucracy and having a higher tax exposure. In many other places, you can still rent long-termish and still visa-run regularly.
For example if you own any stocks and become tax resident, then leave and break tax residency, you may often owe an "exit tax" on your unrealized stock gains.
Even stocks in your retirement accounts like IRA may not be treated as tax advantaged by another country.