Originally Posted by SchmutzigMSP
I think your math is off. SE still gets a 50% bonus. So, for the 50k flown, you'd earn an additional 25k in bonus miles for a total of 75k. GE would net you an additional 50k bonus miles over the 50k flown for a total of 100k.
GE also gets you confirmed upgrades on award tickets while SE does not. You also get a toll-free fax number and priority waitlist benefits which are helpful during IROPS and standing by for an earlier flight. You also get access to elite security lines at all airports that offer it. For me, though, the extra miles would be worth it.
The benefits of gold are far better. Also, there is always a chance as gold flying out of SEA. There is NEVER a chance as silver. Plus the conpanion upgrades with gold.