13 zloty for lukewarm coffee plus the privelage of waiting 10 minutes in line to get it.
13z times five days a week = 65z a week
52 weeks a year = 3380z per year for your coffee
10 minutes a day waiting = 50 minutes a week
52 weeks in a year = 2600 minutes or 43 hours per year waiting for your cup of coffee
In essence these useful idiots are wasting 43 hours a year waiting and 3380 z ($975 US/ 800 euro) a year for a cup of coffee 5 days a week at Starbucks.
I buy about $60 of coffee per year (and that is for 7 days per week) and make mine at home (which is much better & no wait time) while brushing my teeth every morning.
Bought a nice aluminum and insulated go cup at Salvation Army for a $1 that fits in my trucks cup holder that I have used for years saving the landfill of 260 trashed Styrofoam Starbuck coffee cups just from one person per year.
If only everybody was like me.