Mtn suprisenly introducing cheap data plan

Mtn is coming up to the standard people are expecting from them in terms of affordable data plan. Mtn have started to reduce the price of their data plans and increasing the data cap as well. The question is " is this promo from mtn or we should expect the data plan to remain cheap as it is or even cheaper?" That can only be answered by Mtn for now. To subscribe for any of the mtn cheap data plan,check the list below;

>> 30MB #100 24HRS(1 day) send 104 to 131 or dail *131*104#
>> 100MB #200 24HRS(1 day)  send 113 to 131 or dail *131*113#
>> 750MB #500 7 Days send 103 to 131 or *131*103#
>> 1.5GB #1000 30 Days send 106 to 131 or dail *131*106#
>> 3.5GB #2000 30 Days send 110 to 131 or dail *131*110#
>> 10GB #5,000 30 Days send 116 to 131 or dail *131*116#
>> 22GB #10,000 30 Days send 117 to 131 or dail *131*117#
>> 50GB #20,000 90 Days send 118 to 131 or dail *131*118#
>> 85GB #50,000 90 Days send 133 to 131 or dail *131*133#