i am not sure, but the main reason to downgrade is that this card's fee waiver condition is to spend just 50k, also it gets applied on sbi online offers, i don't need this for RP, also will be using this card for fuel a few times as well.
Also, if i spend 1 lakh with any other card, i will get a minimum of 1000Rs(1%), which is not in the case of simplysave, but i am ok with spending 50k as it will waive off 500Rs fee for me.