If reaching 25,000 PQM on United by year end isn't likely without mileage running, would mileage running for Silver be worth it? Remember there's the $3,000 PQD requirement too. It may be cheaper and easier to get the United Club card. You'll get Club membership and can bring in family for free. You wouldn't get this with Silver. I think the main differences between United Club credit card and Silver status are the complimentary upgrades and seating, but Silvers flying out of SFO are very low on the waitlist for these benefits.