Not sure what the market price would be on Morrow, but he seems to fit right into the Suns' "room" exception of $2.5 million per year.
Snippet from ESPN preview last year:
+ Amazing shooter. Money off the catch. Can play over top of smaller guards.
+ Subpar defensive player. Limited laterally and athletically. Low energy level.
+ Decent rebounder for size. Not a creator, but has good feel offensively.
Morrow is a professional shooter who really lost his way after leaving some really bad Golden State teams. After making 46% of his 3s in his first two seasons and 42% for the nets in his third, Morrow made only 37% the last two years for three teams.
Still, at his worst, he would be the best three-point shooter on the team. And, he's refreshingly bad at most everything else so he wouldn't add too many unwanted wins to the Suns win total (for those not wanting to improve the team too much).