Not to take anything away from the bowhospital, I am sure they do an outstanding job. That being said many issues you can easily take care of yourself. Taking out a little limb twist, filling holes, cleaning up and refinishing. All pretty easy and fun projects that you can do with a little instruction found on this website. Now replacing limb tips, reducing weight, repairing splinters, working on collector type bows, etc. may be better left to an expert, depending on your own abilities and experience.
You may receive better advise, if you tell a little more about the bow and what you think needs repaired or corrected. Pictures are great as well.