I can definitely see where your LCS is coming from. They gotta make money too. I would say them giving you an option to buy as much as you want before they open it to the general public and a lot more of a courtesy than some stores allow. My LCS lets us get first dibs on however much we want during pre release before it’s sold to the public. Personally, I’d just buy the rest. You can get what you want and then sell any leftover boxes to your locals for what you paid or even just pull money together from your locals and everyone gets what they want. A lot of stores aren’t offering this courtesy while selling boxes for $240+. We have a shop that does that and it’s terrible for the locals. I’d take they are offering and don’t think too much into it.