price yourself out of the market
US /praɪs jərˈself aʊt əv ðə ˈmɑːrkɪt/
UK /praɪs jərˈself aʊt əv ðə ˈmɑːrkɪt/

1.
to charge so much for your goods or services that no one will buy them
:
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If you price yourself out of the market, you won't sell any houses.
•
Many small businesses price themselves out of the market by not offering competitive rates.