I have always ignored these because I thought that they were a complete and utter rip off where cost is concerned.
Just before Xmas, I bought one purely because the Brussel Sprouts ready picked and bagged, looked like they were already past their best and would not last. I paid the extra and bought the Brussels on their stems.
I used the last of them yesterday, they did 3 meals, and they were as fresh as the day that I bought them. That was over 2 weeks ago!
I am a complete convert now.
In fact, I bought another one at Aldi today for just 79p.