Let me tell you how I feel about it....
Every time I think about doing a more commercial studio gig, which I can even now with what I have...I start to think about everyone coming and going out of my house/my studio...and consider that I will make very little in the way of any profits, because I'm not going to get the crème of the crop AFA talent....it will be the local bands/artists, most of who will not be wanting to spend too much, and thinking why should they when all you need is a computer and some plugs...
...so my enthusiasm wanes quickly.
That said...I have NO problem for upgrading and spending some money just for my own studio enjoyment. I just think that with a more pro console, I will have pretty much the complete analog setup that might draw some more choice talent to come and record...like where I cherry pick what I really want to get involved with.
To be honest...what I would more seriously consider doing, is to provide a mixing service, with the carrot being the analog OTB mixdown, with the console, tape decks, outboard being the draw, and also being able to do it hybrid from a DAW, so all the ITB guys could just send files. Then I would also offer a few other things on the ITB side...if I went down this road.
That would allow me to keep my studio to myself for the most part...maybe do the odd, cheery picked sessions...and for the most part any other work would be just me in the studio doing mixes, edits, whatever was needed.
It's a idea....not sure if I will go there. Right now, I'm still working on the console upgrade.