I'm NOT seeking investment (legally stated for now), but I've pitched my business/goals to a few angels just for practice. The business is in data processing and is very procedural. As such, the code...is...well...somewhat procedural.
There is no new shiny OO (choose your flavor/language) design. It is basically a list of instructions employing numerous off-the-shelf tools. The objections I have heard are not geared to market potential but more towards the design philosophy, opposite my expectation.
It works, it is fast, it scales pretty well uses a scatter-gather & fork-join async durability method to avoid latency, and frankly, it'd be at least 9x the amount of sweat to get it coded and maintained in a "proper" OO stack.
Minus maintainability, at the "end of the day" do investors/VCs/angels care that much about the structure of the underlying design?