Band 30 is currently only being used by AT&T which isn't available in all areas anyway. Unless you plan On switching to AT&T in the future I wouldn't worry about trying to switch it out.I bought the T Mobile version about a week and a half ago (to use with Straight Talk) and understand it doesn't have band 30. I didnt think the sim free model would come out for a while which is why I didn't just wait. Pardon my ignorance but I don't know much about LTE bands. The nearest Apple Store is 2 hours away so I really don't want to exchange phones if it isn't worth it. Am I actually really missing out if I don't have band 30 or is it pretty much the same? If it was as simple as walking into the store down the road to exchange them I probably would just because what the hell, I guess I could use an extra band. In all seriousness, am I missing out on anything by not exchanging and getting a phone with band 30? If so I will mail the phone in and exchange it (God forbid I'm without a phone for 2 to 3 weeks).