TLDR:
Please stop overvaluing your time at the expense of your users. It is easy to get caught up in a features pissing contest with that other startup down the road, but don't lose sight of your mission. Take one problem that people have and solve it. Well. All of it. All of the time.
Last year I read the wonderfully concise essay Half, Not Half-Assed by the 37 Signals team.
It took me more than five minutes to figure it out, but the time spent thinking was definitely worth it. Talking with coworkers, friends, or conference attendees about those handful of paragraphs reinforces this.