What is the best purchase you have ever made?
Maybe some physical books? Or an icon?
Yet the best purchase is my ebook reader. Yes I am tied to some universal overlord! But instant access to a book is priceless. I can carry a whole library in my pocket. And I can search that library. In fact, when my reader broke (or, I thought it was broken) I had to get another. Now I have two!
And, tbh, I would give my right arm for a colour version!
a fool and his prayer book 