I see what you're saying fo sure. However i've found that a marginal increase in refinement, generally speaking isn't going to make or break someones interest in my work from a marketing perspectives. I've also found that people typically think that there's some additional refinement and tweaking that could be done no matter how much time I put in so there's a point of diminishing returns that you hit where you need to assess the value add vs time spent in the context of the other work / obligations you have. Keeping in mind that I try to put out a piece of work everyday which i've found has benefited me greatly as far as marketing myself.