IMHO, internet.bs has a much cleaner interface than GoDaddy. New registration and transfer prices for com/net/org are cheaper.
For new/transfer/renewal .org and .net, you have to have GoDaddy's "discount club" or be buying more than 100 domains at once, and for new/transfer .com, even 200+ or "discount club" are still more expensive.
For renewal .com, you need 50+ (or "discount club") for GoDaddy to be cheaper. That discount club costs $90/year, and since GoDaddy is only cheaper for .com (by 36 cents on renewal only) out of those three TLDs...
Math for fun
:
.net and .org are already cheaper all the time, unless GoDaddy is running a coupon, in which case they become cheaper immediately upon renewal, so ignoring those and going with .com
GoDaddy .com new registration with "discount club": $7.99
internet.bs .com new registration: $7.49
50 cents per domain extra on new registration. Using only one-year registration, you need to buy 200 or more domains (200*$0.50=$100), or "discount club" ($90). 200*$0.36=$72 savings on next year's renewal, which isn't enough to match the discount club, so discount club is cheaper for now.
W = years
X = base cost at internet.bs
Z = number of domains
best internet.bs cost for 1 year: $X
best GoDaddy cost for 1 year: $X+90+(Z*0.50) or $X+(Z*0.50), where Z is at least 200
Now for the renewal, you're going to save 36 cents per domain with GoDaddy.
best internet.bs cost for 2 years: $X*W
best GoDaddy cost for 2 years: $X+90*W+(Z*0.50)-(Z*0.36) or $X+W*(Z*0.50)-(Z*0.36), where Z is at least 200.
Graph out where XW and X+90W+0.5ZW-(W-1)0.36Z (or X+0.5ZW-(W-1)0.36Z where Z is at least 200) meet up to see how many domains you need to make GoDaddy cheaper for two years. The 36 cents will add up eventually, but you need quite a lot of .com domains to do so, and you'll be seeing lots and lots and lots and lots and lots and lots and lots and lots and lots of ads during that time