There are many ways to buy cheap elsewhere but still lose your shirt. 

Ditch the cheap shower surroundPlease don’t buy that cheap five-piece shower surround that you saw at Home Depot or Lowe’s.

Bring in a load of Jersey heifers cheap.  

The list goes on.For mission-critical items, you want quality, not cheap.

One posted about buying a cheap quad,  i used her bumbers provided and my maintenance/cap ex to show negative $600/month.  

You could get workers for USD $3 per day to cut brush.Local produce is relatively cheap. 

they think 3k on a how to class is cheap and it is.. and all of a sudden they are going to make huge return based on % but its still small dollars.. and how are they going to convince a wholesaler to even use them. 

The first indication is you spent $290k for $1800 cash flow or a 0.62% monthly ratio.Rent $1800 - PITIH $1480 - $180 (pm) - $90 (vacancy at 5% which is lowest i ever allocate in my underwriting and likely low per the OP description of a lot of new development) = $50 for all other expenses.Maintenance/cap ex on 4/2, 2100’ will exceed $300/month even in cheap labor markets on sustaining basis.  

Stay on Bigger Pockets, listen and read and you'll get some education on the cheap. 

It might seem like a kindness to provide a printer to a traveling professional, but until they invent one that works on every device, every time; that doesn't need paper at two in the morning; and has cheap toner that refills itself, we will pass on that amenity.I am sure there are other examples for all 4 quadrants, but like @Allen Duan wrote the important thing is to look at amentities through the lens of the end user (with an eye towards the "competition").