The competition should be on possible solutions to a tough situation as was presented in this post I came across. 

Yes sure, but there are great builders and it is irresponsible to make such a statement.The modular duplexes I am going with provide higher quality insulation and finishes and structure than you find in local stick builds.There have been studies showing modulars are sturdier than stick builds, and you can certainly achieve price efficiencies for the reasons stated above.For an investor with a volume goal (such as my 100 units in 3 years goal) in an area with low or expensive inventory or high competition, or for investors in an area with a lot of ongoing construction leading to high labor costs, or somebody that wants to run a strategy that churns money fast then modulars are a great development platform.

I am also in AZ and know that competition is fierce, but you have more than enough equity to work with. 

If you are somewhere ultra competitive, it may make sense to have it regardless!

I'm interested in factors like market demand, competition level, and overall growth prospects. 

Because of this, sellers in my price range are limited to cash only buyers which truly limits the competition.

Ok thanks for getting back isn't it highly competitive right now though? 

The transaction signifies a growing trend of industrial investors acquiring shallow-bay product in established locations to avoid competition with the growing supply of distribution centers hitting the market.In the same month, Terreno Realty (NYSE: TRNO) acquired a two-tenant, 112,363-square-foot shipment facility in Redondo Beach, CA, from Link Logistics, a subsidiary of Blackstone.

If you can find niche markets with less regulation and competition it may be easier!

Real Estate prices are competitive and the area offers plenty of activities, from outdoor recreation to shopping.