Hopefully, by then, there's more similar deals or major price drops. With LTE becoming the standard and 5G coming online, there will be plenty of free capacity that the carriers will want to "give away" to encourage subscribership numbers for their corporate reports.
** Mo. charges excl. taxes & Sprint Surcharges [incl. USF charge of up to 19.5% (varies quarterly), up to $2.50 Admin. & 40¢ Reg. /line/mo.) & fees by area (approx. 5–20%)]. Surcharges are not taxes. See sprint.com/taxesandfees.