Evie, will you keep track of what I purchased? If this sounds like a silly question, it isn't; it's borne of experience.
I've had things happen in the past where I'd go for a megadeal (elsewhere, not you) with two or three different compahies ... only to come back again maybe six months, a year later to do yet another megadeal and end up
a) getting two dozen duplicate sets or a thousand duplicate images from the multiple purchasings
or b) be told by the seller: we can't keep track of what you bought before to make sure you don't get dupes again.
I won't go through that crap again. Makes my initial nice savings end up not being so hot over a period of time.
So if I get something now from bargrain basement, then say half a year later if I get a bunch off of markham, will "flags go up" on your end, so you can alert me that I already own "half of what's ion my cart and not to buy the same thing all over again"?
