Much depends on the NUC and who made it.
Information "I" want to know when purchasing one or more NUC (s);
How old or how long has it been an actual colony of bees? When was the queen introduced? Where did the queen and the bees come from? Did the NUC supplier make it up themselves from 'their own' queens and bees or did they 'just' purchase them as anyone can? Were they 'treated' with any chemicals? If so, for what and when? Can I transfer to my system? I use all mediums so NUC's in DEEPS are a pain to deal with.
I've heard a couple troubling reports of 'unscrupulous' beeks buying several packages and some 'extra' queens, splitting them up, then adding a few of their own brood frames to a box with some honey and calling it a NUC, then selling it for $150.00 and up, depending on the extent of the tale told... :(
The process in one case took a day to put everything to the ready, starting with a dozen packages with an 'extra' queen purchased for $95.00 each, those bees were split in two, put into 'cheap' NUC boxes with a queen, along with 2 frames of brood from the sellers bees and 2 frames of honey and sold the next day for $150.00 each. A pretty good profit, heh?…..but NOT the way I'd want to get bees.
"Caveat emptor" (buyer beware)……..or 'know' who is selling you the NUC….just saying :)