The site receives 150k users monthly with up to 400k page views. All the traffic comes from Google search. The niche is celebrity news and current affairs. The website currently has over 2,000 green articles.
I haven't been deep into monetization because I wanted to build massive traffic first, so the site is making between $450 - $600 from Adsense and another $500 from sponsored posts and eBooks. Taboola suggested I could be making $1,200 from them but I haven't implemented their code yet. The domain name is a one word English domain.
To give you more idea about the potential with the traffic, I listed and sold a custom WordPress theme I was no longer using for $5,000 on the site last two month.
Now, someone is offering me $30k but I'm insisting on $40k - $55k. Is it wise for me to accept it and move on because I needed to move on fast? Any advice will be highly appreciated. Thanks