The United Mileage Plus Visa continues to win back any credit cardholder that was worried about United’s bankruptcy. These two offers highlight the plastic wars and point out the fine details of differences. Offer #1 is for 21,000 bonus miles and no annual first year fee. Offer #2 is for 25,000 bonus miles and no first year annual fee. The fine detail of the difference? Offer #2 requires you to make $250 in Eligible Purchases (“Eligible Purchases” means purchases, balance transfers, or balance transfer checks). Spend $250 for a 4,000-mile bonus. Deal or No Deal?