I will say this and say this once and how you take it in is all on you. Your boots are the single most important piece of equipment you will ever own in snowboarding. A bad binding might suck for a day or two but it won't ruin your vacation. A bad board it's the same thing, but you can still ride it. You can ride a combo of both that suck. BUT boots are the one piece of equipment you don't EVER FUCK WITH. Go to a shop and say who gives a fuck about price, taxes, or time. This is the one piece of equipment that is an investment to your future happiness. Do it right and you'll be stoked, do it wrong like buying from the Internet and you will hate your life.
ALL HAIL BA!
cannot stress this enough. i just laugh at all the dickheads that come in to the shop i work at with the line "i bought these online and they dont fit well...". plain and simple, you said it yourself, they dont fit. we dont fix that.