Sep 30, 2020 - 07:47 AM
usually, "immer" goes right before what it refers to, so if it refers to the day, it will go right before it as in: immer Montags = always on Mondays, but if it refers to the price then it will go right before the price as in your second example: immer günstiger = always cheaper.
Here the emphasis is not on the day, but on the fact that it's cheaper on that day.
It can be confusing in English because we always put it before the verb, but the idea in German is to try and think what it describes (the time, the place, the object...?) and place it right before it.
I hope it makes sense! It's not easy but it gets more and more natural with practice!