Thanks to everyone who responded. I went ahead and bought those 10th row seats. Noticed that they had some platinum seats open up in rows 4 and 5 a few days ago for a decent price. I called Ticketmaster today to see if I could possibly upgrade to those seats and just pay the price difference. Sadly, the representative said that since they were platinum they could not be upgraded to.
Oh well at least I still have floor seats so I'm excited. Has anyone tried asking for upgrades once you get to the venue or sneaking up? Haha does that work??