Ask why!!!!

Jack: Hey I am planning to buy this thing there are x, y and z varieties. Which do you think is better?
Jane: Ummm, will let you know have to find out. I am not sure right now. Will let you know in a couple of days.

Next day:
Jack: Hey have you done your research? Which do you think I should buy x,y or z?
Jane: Well I did some research. I realised ‘x’ is the best so maybe you should go for that.
Jack: How do you say ‘x’ is good? Where is the data on which you decided on ‘x’?
Jane: Well asked a few of my friends and most of them said ‘x’. So it is ‘x’.
Jack: Well why ‘x’? Why not ‘y’ or ‘z’? How many of them have used this? What is the price difference?
Jane: I am sorry I offered to help. This is all I can tell you. Take it or leave it.
Jack: ha-ha!!! Hey was just pulling your leg.
Jane: }:-( ……
Jack: But you have to learn to ask why?
Jane: Ok got that.
Jack: Anyways I am buying ‘x’….
Jane: :-D.....so I was right!!!!
Jack: But you have to ask why. You should not just accept what others say?
Jane: Ok, whatever you say..
Jack: What??????