This is my situation, I want to make sure I'm calculating this correctly. And BTW, I'm not stupid for not knowing how contracts work (I didn't get that vibe from that response, just saying in case you were wondering), we've just only ever used month to month and AT&T NEXT (which is getting too expensive)

Note: I'm doing these calculations for my father, (I'm 14) he said either to find a way he could afford new phones, or I'd have to buy mine myself. Or worse yet, stick to my iPhone 4 (*gasp* THE HORROR!).
So, we'll be upgrading two iPhone 5s, one to an iPhone 6 for Mom and one to either a Moto X or a Galaxy S5 (Dad hasn't decided yet), and my iPhone 4 to a Galaxy Note 4 sometime after it launches (BIG upgrade there

) We also have an old iPhone 4S being used as
my little brother's emergency phone our "home phone", but that's not getting an upgrade for another 12-14 months. If I'm right, this will be our costs:
iPhone 6: $199
Moto X (leather+32GB)/S5: $174.99/$199.99, respectively
Galaxy Note 4: $299
iPhone 4S, still on AT
$&T NEXT 18 (

): $15/month
Data (10GB Family plan): $100/month
Access fees: $15/line/month x4= $60/month
So we'd just be paying $674.97 (with Moto X)/$699.97 (with S5) for the devices up front, then $175/month?