Estimate yearly and monthly internet cost at a chosen plan price in South Dakota.
Internet cost in South Dakota: monthly plan times 12 plus any one-time setup/equipment fees. Promotions often expire after a year — note the post-promo price.
Yearly
Yearly = monthly × 12 + setup
Estimate.
Yes — modem/router rentals add $10–15/month; buying your own pays off within a year.
Rates are approximate reference values. Local rates, exemptions and rules can differ, so treat the output as a planning figure only.