The 2018 Miata got a number of minor updates. Most people I know were fawning over the new cherry-red top, but I was far more interested in the leather-wrapped Recaro seats. These are now included in the $3,770 Brembo/BBS package. Previously, that package just added a set of two-piston Brembo front brakes and black BBS wheels. Having put thousands and thousands of miles on various NDs, I didn't think it was really a worthwhile option unless you were planning to track the car regularly. These seats have changed my tune.
The standard seats in the Miata are bad when new and get progressively worse as they break in. I'm a big guy (6-feet tall and about 220 lbs.), but I know I'm not alone in the assessment. They're thin, unsupportive and wrapped in some cheap fabric. Just look at this photo from our old long-termer. The seats kill any real desire to own one.
These Recaros are different. Yes they're still thin, but they have bolstering and padding in all the right places. I no longer feel like I'm riding along on a cheap, worn-out couch. Plus, they're heated (though you can now get heated cloth seats), making the brisk Michigan-morning commute far more comfortable. Now all the Miata needs is a slight bump in power.