Here's just some sample domains that are bitcoin related. This domain is not for everyone so please don't offer if you can not afford it.
Bitmining.com was sold for 3 bitcoins so I'm sure this is going to be sold for much more.
bitcoinwallet.com 250,000 USD 2014-02-05 Private
bitcoin.com.au 35,182 USD 2014-12-10 NetFleet
bitcoin.co.uk 30,000 USD 2016-06-13 Flippa
bitcoin.de 29,750 USD 2011-06-21 Sedo
bitcoin.com.au 23,000 USD 2014-04-16 Sedo
bitcoins.de 21,420 USD 2011-06-29 Sedo
bitcoin.de 21,420 USD 2011-06-29 Sedo
bitcoin.us 17,500 USD 2012-12-30 Afternic
bitcoin.me 10,000 USD 2014-01-09 Sedo
bitcoins.co 6,500 USD 2016-03-11 Flippa
bitcoin.ly 5,250 USD 2015-12-10 Flippa
bitcoinsolutions.com 5,100 USD 2014-02-21 SnapNames
bitcoindaily.com 5,000 USD 2014-01-08 Sedo
bitcointrader.com 4,200 USD 2015-01-03 NameJet
bitcoincasino.us 3,500 USD 2016-07-25 Sedo
bitcoincalculators.com 3,000 USD 2014-02-12 Sedo
bitcoinwallets.com 3,000 USD 2014-02-09 Afternic
insidebitcoin.com 2,963 USD 2015-06-18 DropCatch
I bet the owner of BitcoinWallet.com is still kicking himself for that purchase ($250k). He's not even a top 10 wallet provider.
But not the Bitcoin.com owner for sure

You are aware that:
1: Bitcoin.com is the best possible Bitcoin related domain
2: Bitcoin.com was leased out for $10k a month... only for the firm renting it out to immediately try and cut the deal (
http://www.coindesk.com/roger-ver-sues-bitcoin-exchange-okcoin-570k/)
3: What are other examples of generic Bitcoin related domains having any signs of success?
Its a rip off.
This proves why your domain is extremely over priced. All of those domains were sold years ago, and none of them are successful sites. Just glancing through the list, I don't even recognize any of those sites.
Domain squatters are the new snake oil salesmen.