Let's say it is $100 more than you would normally spend on tires. In the grand scheme of my life, $100 ain't much. So I drink less tequila. Go out to lunch less. Don't go to the movies. Don't drive to see inlaws.
And even if you never buy them again, you tried it and you won't feel the financial hit in 20 years. The question is why wouldn't you try them?