Serious questions in OD

If I were to put a bunch of my short stories together and sell them as an ebook (I’m thinking Kindle, pdf a.d epub)* for about £1-2:

How many stories should I include?
How many pages should the book be?
Should I make all the stories similar or a mix?
Would you buy it?

I am serious about this. What do you think?

Will

*I know, given my attitude to ebooks in general, this might seem hypocritical. Deal with it