I typically take about 25 flights a year on Delta a year. I'm two (2) segments short of Silver this year. I've been FO or GM for several prior years. As FO, I've generally enjoyed a solid upgrade rate and priority standby. Is it worth a mileage run to keep FO status? (It will set me back about $330 and Sunday morning.)

I'd just buy a few miles, but I'm a segment flyer.