(NASDAQ: RDFN) —The median U.S. monthly housing payment was $2,686 during the four weeks ending March 10, just $30 shy of last October’s all-time high, according to a new report from Redfin ( redfin.com ), the technology-powered real estate brokerage. That’s due to a combination of still-high mortgage rates and rising prices. While mortgage rates came down slightly this past week after increasing for four straight weeks, they’re still near 7%, and sale prices are up 5% year over year...