A 2007 U.K. white paper on the House of Lords favoured a combination of elected and appointed lords, arguing that a fully elected House would tend to resemble the House of Commons. It would tend to increase the level of partisanship in the House and would risk turning it into either a permanent block or a rubber stamp for the policies of the government of the day.
We're talking about a hybrid. Have you ever considered an elected and appointed body?