If you are concerned about your 'exit strategy' from the business you're planning to start, maybe you shouldn't even bother. Seriously, if you're not interested in building something to last, you might as well go into another fields such as financial derivatives or hedge fund trading. As a consumer, I would be less inclined to do business with a company run by folks whose goal was to 'exiting' as quickly as possible.
I agree entirely, but you have to look at it from the perspective of the investor. The only way they actually get paid is if the company has a liquidation event. That's (at least in my understanding) why all VCs want to know your exit strategy.
