Just a data point--in 1985-1986 the pricing for twin sheets at LS Ayres (upper-middle department store from Indianapolis) in Cincinnati, OH: 180 count Wamsutta percale 50/50 blend were $5.99, 200 count Wamsutta Supercale 50/50 blend were $9.99 and 240 count Wamsutta Ultracale 100% cotton were $14.99. We were a B-class store and our stock colors were white, navy, light blue and ecru. A class stores had Ralph Lauren or Martex (can't remember which) on the top of their selection at $19.99; they also had an extra color or two. Prints were similarly priced, with Laura Ashley as the top of our selection. We'd have 6-10 different prints in various colorways with full availability (comforters/shams/curtains/etc etc) by either special order or store transfer. The buyers would get in 3-4 promotional stand-alone prints which were in and out (not deeply stocked; occasionally just Q and K sets; sometimes "single priced"...remember one Sunday I was working and the promotional sheet in the sale tab was a Marimekko print. A faithful customer phoned mid afternoon and asked for 6 sets to be charged and sent out to her...made my sales that day!