If you are in the business of selling floppy disks right now, you probably have very few customers. When we restrict ourselves from exploring new opportunities, we may be left trying to revive a business that has long flatlined.
Some people have narrowed their scope to one specific thing. Most people in business understand the need to diversify so that progress can be made in case the "basket with the eggs" gets lost. There are many who have become serial entrepreneurs because they understand the concept of implementing great systems beyond simply having a great product. Harness the power of your mind to conquer new terrain and gain increase in many areas.
Why be defined by a limited perspective? Use your current business model to improve your future prospects. Stay open to innovation by engaging with people who think beyond popular trends and hot topics. Forward thinking will allow your business to survive and adapt in spite of changes, failures, and expanding technologies. Resist the urge to immediately reject new ideas and emerging concepts. Remaining open will keep you in business even if you have to change the menu.