morphettvale is a HUGE suburb , with some good areas and some dodgy areas.
i live in seaford and have an ip in morphettvale , i dont think you can really compare the 2 , as i walk to the beach from my house , you cant do that in morphettvale.
generally the east side of south road seems better than the west , but as suburbs like elizabeth have jumped in price , mv seems better value all the time.
still >1% vacancy rate there , even though there isnt the industry of the northern suburbs , so people are still wanting or needing to live in the area.
i feel the parts of mv closer to woodcroft , reynella etc will be better in the long run than the parts near christie downs or hackham west.
i see it as a long term hold suburb , that gives better yeilds than some closer to town