In my opinion...monero price ideally is half of dash price. Coin in circulation is twice dash dash and monero both is competitor in crypto. If it is reach half of dash it is mean it reach its highest price.
Monero is a competitor of DASH as of all high capitalization Crypto coins, but it is not a close competitor. Bitcoin is way closer competitor with DASH then Monero is with any of those two. But since Bitcoin is a bit out of league, ofcourse DASH have other competitors. One that is new is BHC.