You don't need to have over 30,000 of the things to rapidly fill up 128GB. In fact, you'll run out of space after just over 1,700 images, provided you take 48MP ProRaw images at 75MB a pop (and that doesn't even factor in space taken up by your apps, documents, messages, and iOS itself).

Yes, USB flash drives with 128 GB capacity and larger are widely available. As of my last update, you can find USB drives with capacities ranging from 256 GB to several terabytes. These larger drives are useful for storing large amounts of data, such as videos, high-resolution images, and backups.

If you're planning on downloading many games, you probably want a high-capacity card like a 128GB, 256GB, or 512GB microSD card. You'll be able to store more than enough games and they'll load faster since they're higher performance cards. For moderate use, a 32GB or 64GB microSD card will work.

As long as you don't install too many apps, especially games, don't download and store lots of videos and don't take too many photos and videos with the phone's camera, 128 gigs can still be enough.