Good on you Nino for running YOUR businesses the way that you want to and the values that you see are important. Like you say, your customers know what they get with you and they are prepared to wait and in the case of RTBB, use the payment methods offered.
I don't employ anyone in my business apart from my brother and our wives and don't take on any new clients (as my clients are regulars) Some would say I am crazy for not employing more and taking on more clients, but do I care?, no because I run my business the way I want to.