Is DTG right for my situation?

Okay here is the jist of what I am looking to do. I have one 24000 sqft retail store. I am also a wholesaler of very cheap goods to other cheap retailers. I get containers of mixed goods which I sell wholesale and retail. I am wanting to start selling printed shirts in retail at small runs 48-120 pcs. I am also wanting to make different prints on some of my blank samples to try and sell large runs to my wholesale customers(1000-20000pcs).
My thought is to buy a DTG printer for the samples and short runs in the store and if I get a large wholesale order send it to my local screenprinter to do the large orders.
I am looking at the non white printers due to how long it would take to pay back cost of machine at retail.
Does this seem like a logical choice in my situation?

I think this a great idea and it won't take you no time at all to pay it back. I do recommend a pretreater though for a good even spray.