Most of the domain owners often ask for ridiculous prices and that domain certainly won't be worth even 5% of what he is asking for.

If you are looking to build a product/company, you want to avoid going with .net (specially if .com is owned by someone else who is looking to sell it at premium anyway)

My advice would be to go with some other name, as the domain registrar/parking companies also inflate the price by 3x-5x so the real price of the .net is probably 1k