closed "i" name making $300 per month.

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I would rather not post the actual domain name here, but it is a dot com "i" name, short and very marketable, but more importantly, it is currently getting 4500 unique type ins per month, and maked $300 per month from google adsense.

The traffic is coming from people who are going to my dot com, when the actual website for this product is a dot net.

What do you guys think it might be worth right now?