Originally Posted by Corbet
Not that big of deal if you buy 5 to start with. Most likely you'll be able to finish off your trip with the spare. Replace it when you get home.
No, it's not a huge deal, and tire failures are less and less common these days. But...if you blow one early on it's worth considering if all else is equal.
For example, try finding a 37x12.5x16 trxus just about anywhere