Here is a tip.
You should NEVER disclose an attempted offer in a public forum.
For one, the person or company that owns the domain in question can easily see it by doing a search, and second, you are giving an opportunity for others to do the same, therefore making the owners alert of the interest, and probably have them receive offers by others (your potential competitors), hence potentially increasing the price.
Finally, the .net is in this case more valuable than the .org, but I disagree as to the above mentioned difference.
They are probably closer in $ value than the large discrepancy shown above.