You only need to look at Merz to show this isn't true. Been around for 10+ years and have kept the exact same market share despite their buy one get one free sampling, ridiculously low price to large accounts, a large sales force, heavy marketing dollars (Gwen Paltrow, Aguilera, Jonas...). There will always be excitement for a new product from accounts and the cheap price will help, but practices are only going to put up with substandard product for so long then you'll be in the same boat as Merz handing out thousands of samples trying to appease price conscious doctors.
Agree with the comment that the label for this product sucks. It's got the lowest efficacy of any approved toxin by a large margin (45% really, you couldn't even get over 50 in a trial?) and the variability between the studies indicates its a dog sh-- manufacturing process. There's a reason Croma (their partner in Europe) had no issue giving up the U.S. rights. They have a dog on their hands and can't move the product in Europe. Product is also already available in Canada and hasn't done anything. Once they get outside South Korea they can't pull the same crap.
Easy to get down on this market, but the facts always show through. In Europe there's 100 cheap fillers and Restylane is still crushing. People want quality. Galderma's problems are with management and stupid quotas to feed what Fleming wants for his precious stock to grow.