Unless you can find it on sale - or a coupon - I'd suggest buying from the source, in this case it's one person - which would probably be most supportive as opposed to going through a re-seller who'll take their commission.

I can tell you that I have searched diligently for a sale on Moi, and if you found a sale - even a black friday one, it would be a fluke.
Cheers,
...and welcome to the family!
Cederique Le Magnifique