Ana has won a new Apple laptop, but she already has a HP laptop, so she decides to sell the Apple laptop. Ana starts contacting her colleagues, friends and family to see if anyone is interested in purchasing it. Jeff who is Ana's cousin, contacts Ana to purchase the laptop. Ana tells Jeff that since they are cousins, she's happy to sell the laptop to him for $800 even though its worth $2,000. Ana and Jeff agree to meet up next week to exchange the laptop for cash. Ana tells her friend Wyn about the exchange between her and Jeff. Wyn tells Ana that the exchange with Jeff is not valid because the exchange is not done at market value.

Explain what is consideration AND with reference to consideration explain whether or not Wyn is correct.