I have 310 flavors. If they were all 10ml bottles (and they're not--a bunch are 30ml, a few are 15ml, and there are several duplicates), that would amount to more than three liters of flavoring, enough to make juice sufficient to last me more than fifteen years.
tl;dr: I shouldn't buy any more flavors.
In other news, @ceeceeisme's three-ingredient Butter Rum Custard tastes remarkably like my much more complicated Arroz con Leche.
Wow @Zazie your stock has increased! That reminds me, I didn't add the new flavors I got today to my flavor stash list, but I did put them away already. I am going to have to dig through the garbage for the packing list because I will not remember what I got today or where it is even... At least I remembered I got an order today, pretty incredible!