a Box of lottery tickets should be weighed against not the Possible payout, but the realistic, expected value of cracking a box. Thanks to Statistics, we can calculate the EV of a box of Modern Masters or any other set. http://www.mtgstocks.com/sets/220/expectedvalue
MTGStocks puts the EV of a box of MM at $414.78. You can realistically expect to spend $358.24 on this Drop, and crack open $414.78 of value in magical cardstock. $56.54 of theoretical profit is definitely worth the fun of cracking open booster packs that typically sell for $18 - $20 each, IF you can find them.
Dr4c0I just bought a box of MM13 off of eBay last week for 375$ and opened it yesterday. The 3 mythics were the 3 cheapest dragons and I opened chalice, engineered explosives, and pact of negation. 1 path and 1 eternal witness for uncommons of value. Super shitty box. I bought it because of the best EV of older sets. But unfortunately randomness was certainly not in my favor this time.