dear Ahmed your definitely right...One cant protect his idea or start up business, one has to update and enhance his product-service constantly and add new features to extend it's life cycle....But I believe there is a way to preserve your ideas and products or services which is your target consumer/customer loyalty to your brand which will make it hard for them to switch from one product to another. Example Iphone users and Samsung users..similar products one may have more features but it's brand loyalty that makes an apple loyal consumer switch from Iphone 5 to 5's not to Samsung. the key is BRAND IDENTITY =D