ringtonemaker.biz invest in it or flip the domain

Just bought this domain
ringtonemaker.biz
How much do you think this domain name is worth.
Ringtone maker has Exact search of 74,400 per month and 27.100 exact US search.
Also,the domain can be easily monetize with the clickbank products.
Just logged into the flippa and i saw this auction
https://flippa.com/2740961-premium-domain-gem-on-auction-with-the-global-market-for-ringtones-biz
Sold for $2200
Looking for your expert opinion.

Domain is pretty good! But not an expert on domain flipping so can say how much it would be worth

Can't say how much it would be worth with .biz extension. However, if you decide to develop then it has fairly good scope.

Thanks for the feedback.I would be interested in selling the domain name,if its worth $$$ otherwise would develop it.