IMO one of the best things about such vaccinations is that, unlike other protective measures that depend on chemicals, like hand sanitizer, or protective equipment, like masks, once immunized you don't need to do or carry anything special. Worse case, you might lose all your gear but your still protected. Also, given the years, often a lifetime, of protection vaccination is highly cost effective.

If your short on money, who isn't at least concerned about it, check with state and local health departments. They often get shipments that get used up quickly. If you know about it and show up at the right time you can often get it for free or at reduced price.