I don't think thats a very good deal if you only get 20 strips. Can't make much of a quilt with that amount.

https://www.craftsy.com/deals/valori-dr-wrenly/378

these designer jelly rolls change every few days.

20 white strips for over $11 a yard? why not just buy a yard & a half of white fabric and cut 2 1/2" strips? sure would be more cost effective.
i was told by a quilt shop owner once that you pay extra for pre-cuts because you are paying for the convienience-

touche ! esp about the June Taylor ruler. I never put mine away, it's always in use!

I buy jelly rolls for their variety of prints but wouldn't buy solid colors of jelly rolls unless I couldn't use the rotary cutter to cut my own strips. A lot cheaper to buy
the fabric and cut it yourself.

Here is my advice about Jelly Rolls. In the long run it is cheaper to buy a GO or cut your own.
Sorry just my take on this.

I have never bought a jelly roll, but have been thinking about it. Would buy one with 40 in it when I do.

Missouri Quilt Co has 40 - 2 1/2 inch strips for as low as 19.95 - just FYI

The local Tuesday Morning had a few packs of jelly rolls, FQs and smaller cuts this week.