What's the most cost-effective way to improve stats?

via gamefaqs:

The cheapest way to max your stats outside of No Account Video and the Techno Shack.

World 1

  • Sushi Bar
    • Avocado Hosomaki at $2.50 x 4 = $10.00 (+4 Spd)
  • Shock Wave Record
    • Smashing Turnips at $16.95 x 12 = $203.40 (+96 Str)
    • Crash and the Boys at $14.95 x 12 = $179.40 (+96 Spd)

World 5

  • Scott's Dad BBQ
    • Kebab at $4.95 x 2 = $9.90 (+4 Str)

World 6

  • Mobile's Secret House
    • Sauteed Shiitake at $9.95 x 25 = $248.75 (+100 Def and +100 WP)

Total: $661.45