Originally Posted by Misco60

If your profile is up to date, and you're still based in MSP, then you're much more likely to find good TP runs from there than from South America (where, as you have said, business class fares are high and the opportunities to earn TPs quite low). There are a lot of suggestions for North America-based runs further up this thread, and getting the 600 TPs you need to retain Silver would be neither difficult nor very expensive.