You have been in the web-spot (Flyertalk) for almost 3 years now. Pick an airline and check back here all the time. Great mileage run opportunities are posted every week.
From PHL and EWR there have been fantastic opportunities with LH and US and probably other airlines over the past couple of years by which top tier status could be gained for $3000 or less per year. Fly to Europe Fri evening, spend Sat. night, and come back Sun.