Hi, and welcome aboard the ECF train, hope you enjoy the trip!
And, I hope that you enjoy your vapes if? when? they arrive, you are correct, it may be a bit of a wait, that "US warehouse" seems to be severely understocked at times, but the good news is you can learn all about vaping in the meantime. Welcome! If you get antsy, you can always pick up a small, pen style vape at a local vape store backups are good, and you might practice some dual using as you wait for your "main" setup to arrive.
Welcome
Anna