@Gonzalo444
It's difficult to offer any specific advice because I don't know your area, or the most common attractions to visitors, or what kind of visitors come to your area (e.g., business, tourism, family etc).
But I can say from experience, that a race to the bottom is always risky, because those who pay the least can often cost more to host - they can be irresponsible, consuming more, cause minor damage, and/or file complaints for refunds (they are, after all, inherently seeking the cheapest way to stay rather than what's most suitable for their trip).
So, if you're going to compete on the basis of price, employ some screening tactics to get a sense of the character of the guest before they book, to help ensure you don't end up in conflicts or suffer frustrations, and actually lose money.
Good luck. Watch your back.