There are six DVD sets that I want order from Rightstuf.com. They are:
Mobile Suit Zeta Gundam: volume 3 = $8.00
Mobile Suit Zeta Gundam: volume 4 = $8.00
Giant Robo Bargain Bundle = $9.99
Clannad: volume 2 = $5.99
Shigurui Death Frenzy: complete = $11.99
Otaku no Video = $8.99
Economy shipping rate is $3 for the first item ordered, plus $1 per each additional item.
Shigurui Death Frenzy is $11.99 for a limited time.
My bank account has x amount of dollars, and the cost of order all of these DVDs exceeds x considerably. y is the amount of dollars that I would like to keep in my account. x – y is approximately $37, the amount of money I’m willing to spend on ordering DVDs.
The first course of action is put together the obvious groups: the most expensive + the least expensive, the least expensive + the next least expensive. All other possible groups that I ran through were alterations of these two groups. When the sum of each group could allow the addition of another item, I added the least expensive item that wasn’t already in the group. When the sum of each group considerably exceeded $37, I removed it. The resulting groups that I favored:
Shigurui + Clannad2 + MSZG3 = $31.97
Shigurui + Clannad2 + MSZG3 + MSZG4 = $39.98
Shigurui + Clannad2 + Giant Robo = $32.97
Shigurui + Clannad2 + Otaku no Video = $35.97
Clannad2 +MSZG3 + MSZG4 + Otaku no Video = $36.98
Clannad2 + MSZG3 + Otaku no Video + Giant Robo = $38.97
Clannad2 + Otaku no Video + Giant Robo = $29.97
To narrow this list down, I ranked each DVD set between 1 and 3, based on how eager I am to own it. The greater the sum of points per group, the more likely it’ll be chosen for purchase. They were:
Shigurui + Clannad2 + MSZG3 = $31.97 (7)
Shigurui + Clannad2 + MSZG3 + MSZG4 = $39.98 (9)
Shigurui + Clannad2 + Giant Robo = $32.97 (6)
Shigurui + Giant Robo + Otaku no Video = $35.97 (5)
Clannad2 +MSZG3 + MSZG4 + Otaku no Video = $36.98 (7)
Clannad2 + MSZG3 + Otaku no Video + Giant Robo = $38.97 (6)
Clannad2 + Otaku no Video + Giant Robo = $29.97 (4)
Since $39.98 is cutting it pretty close to an uncomfortable price, I’m going to go with the $31.97 plan.
EDIT:
So I placed the order and the total wasn’t what I’d calculated. Whatever mathy bullshit I thought I was pulling off, it was apparently wrong.
