I can absolutely believe that. I tried the patch, the gum, the lozenge (blecch), Chantix, stepping down to "nic-free" cigarettes, etc., and none of that worked at all. On the other hand, i quit smoking within minutes of unboxing my first Joyetech 510 from Cignot. It'll be four years this August.
I truly think venders need to take evidence like this and try to overturn the court ruling that made ecigs unable to make smoking cessation claims.
Vaping > NRTs.
I've seen countless studies and surveys that show me this, not to mention the thousands of testimonials from vapers like us.