Ah, nice question! Let's calculate! If the second plan is preferable, the monthly fee plus the per-minute cost should be less than or equal to the first plan's per-minute cost multiplied by the number of minutes used. Setting up an equation, we get: $44.95 + 0.10x ≤ 0.20x. Solving for x, we get: x ≥ 449.50/0.10 = 4495 minutes! Wow, that's a lot of talk time!