Is it worth getting real vanilla?

Both the paste and the powder are vanilla mixed with the simple sugar ㅤ
dextrose (also known as glucose). The extracts are vanilla mixed with
alcohol. This will make a huge difference in the icing test, since you
are tasting the alcohol in the extract samples (I doubt that the
dextrose in the paste and powder makes a difference in the already sweet
icing). Theoretically the alcohol boils off when heat is applied
(pancakes), so this strikes me as a more accurate evaluation.