Questions about reseller plans

[pctank]

If I become one of Godaddy’s resellers using their reseller cpanel:

1- They say: Since your buy rate is only $49 for the Basic Reseller and $99 for the Pro Reseller, you can make the difference between your retail price and the buy rate every time you sell a Basic or Pro Reseller plan from your Super Reseller site.

I want to know if my clients renew their accounts in next years, if I repaid every year? Or like affiliated programs I just paid one time?

2- If after a while, I want to cancel my reseller account, aren’t I responsible for my clients? Does godaddy allow me to cancel my account and they handle my clients? Do I have to continue my website for ever?!!

3- Can I have my own ads on my website?

4- What limitiations are ther to set my plan's prices? I'm sure godaddy doesn't allow me to sell their plans for $1 !!!