Is it unavoidable that, when I buy furniture, somebody else's interest is included in my price?

I am moving into a new place. I have been shopping furniture. Most places around here have these deals that say “One Year Same as Cash”.
But if I pay cash today, the price is not discounted.
So I guess that means I am paying somebody else’s interest. Not that it suprises me. I am paying lots of other people’s bills.
But if that is the case, I think that is bullshit.
What do experienced furniture shoppers do?