Anyone on the Choice Fam Unlimited TT60?

Ive been with tmobile for 24 years. Currently paying $125 for 5 lines. My plan is so old i dont think they dont offer the $5 auto pay discount. Am I correct into thinking if I sign up for auto pay after the switch Im essentially paying $1 more per line?

Are there any cheaper alternative i can switch to. I was paying $82 a few years ago