Someone wants to buy one of my blogs! MORE money?

Is there something in the air? I'm sitting here in shock right now! I received an email from someone wanting to purchase my homeschool blog for a little more than a couple thousand! I don't want to say the exact amount! Am I totally stupid for hesitating? It was started in 2013 and I used sub-domains from it to homeschool my kids, and one of the sub-domains is still there with my youngest child's curriculum I setup on it! After I got the email I did a search! I can't even put good sentences together right now..I'm shocked with everything good that has been happening lately! My husband acted like it was no big deal, so I asked him "Why aren't you surprised? It's not even that good of a site" His response was, "After 10 years and all the work you put in on creating blogs for others, and yourself, they would be worth something one day!" I still have to create a header for the blog, and everything, but I don't want to sell! Ever since I joined WA, after some rough patches, things started happening really good money wise! I don't think any of this would have happened if I hadn't have taken the plunge and joined up! Thank you, Carl Welliver, for being such an amazing friend and referring me to WA! I have to get over the shock and decide what I'm going to do! I don't have the domain added to WA yet, but I implemented the training to the site, some of it anyway, as it's still a work in progress after all these years! Thank you, WA as well! Sorry that this post is so scattered right now and not up to my usual standards..kinda shocked right now!