I am a T-shirt (or nothing) guy and this price point is acceptable. As it stands, I wouldn't buy one but that is because I don't identify enough with the logo as stand-alone art. Whereas, the Aerodrome shirts also feature a famous plane with the added personalization of the ID and Aerodrome community logo.

If you added an abstract of a ship firing a broadside etc. it would be a sell for me. I think the pic should be something dynamic as the general perception of ships is ponderous. Something really hectic with lots of rigging etc. might work.