I'm trying to decide if it's worth it to put $50,000 spend on my Jet Blue Plus card to get Mosaic status. The catch is that I would pay about 2.85%, or $1,400, in fees for this purchase (tuition). The 50,000 (actually, about 51,400, when you factor in the fees) JetBlue miles would be worth something like $800 in JetBlue travel (when you factor in the 10% rebate), so the net cost of the Mosaic status is about $600. This status would be good for the remainder of this calendar year plus next year (2018). I guess it depends how many flights I plan to make (or, how many I plan to purchase and cancel!), but I'm wondering what you all think about this analysis.