I have the chance to try for an upgrade through OptionTown for my upcoming SAS flights between ORD and ARN. I've currently reserved seat 20C, which is a bulkhead aisle seat in economy. OptionTown is offering a chance to upgrade to Economy Extra for about $190 each way. The Business Class upgrade would be $450 each way, give or take. Any opinions on whether these upgrades are worth the added expense? I've flown only UA's Economy Plus on TATL flights for the past two or three years, so regular economy is a bit of a distant nightmare (memories of the middle seat on KLM from AMS to LAX always cause me to shudder). I've never flown SAS TATL or any carrier's business class, so I don't have any experience there. I'm also wondering if my current bulkhead seat somehow tips the scales in favor of saving money and staying put. I'm UA Silver if that makes any difference. Comments are appreciated!