I had the same thoughts and have just made sure I am prepared.  I now have 3 REO's, 350' of 28, 30 and 32 ga Kanthal, box-O-cotton, 1,000 ml of nic 
juice in the freezer, about 300 ml out that I use.  3 liters of PG and VG each, dozens of bottles and about 90 flavorings.  This alone will keep me and the wifey going for years.  I also have for backup, 2 provari's, a vamo 4, 4 protank II's, 8 davides, 6 
smok DCTanks, about 45 heads and about 65 cartos.  Again, I am ready to hibernate for years and I feel great about it.  
Mostly my 'stock-piling' hasn't been due to the FDA, well some of it has but I just like having everything set to just enjoy.  This is my hobby now.  Pretty soon I'll be getting another REO and hopefully a Woodville when they arrive later this year.  I don't need them....but I WANT them.  heh heh heh.
So for the next month or so, I probably will 
buy a few larger bottles of some of the vendor juices I really like and then after that.....FDA can do whatever they want.  I still care what they decide but I won't have to worry.  NO WAY am I going back to stinkies!!!