Eh, I can't imagine Fallout Shelter has whales that purchase 1000's of lunch boxes a go really. What's the point? It's a single player game. There is no peer pressure element like Clash of Clans, where not only is it a constant game of keeping up with the neighbors, but the neighbors also have been armed with bats for smashing your house up with at any sign of weakness.
I actually really respect the devs decision to not do that. Instead it's 'Eh, you can play the long game, or you can pay a couple pennies, get some cool gear and play a shorter game. It really is your choice.'
If you're spamming the $99 Lunch Box option ten times in a row for a single player game with no multiplayer component, so you don't even earn a false sense of superiority as you waste poor pleb casuls, then you're demonstrating some sub-human rat level reasoning skills and deserve to get preyed upon at that point, honestly.