I'm not sure I agree with Powersloshin's experience. In the early days of learning to sail, other friends used to get their boards professionally repaired, and they would be repaired properly, and look good. Unfortunately, at that stage when you are hitting the nose with your mast, even a professional repair is still going to break the same way that the original would. A few friends were complaining that the repairs would always reappear at the same place and wondered why they weren't made stronger than original.
Even then, I was doing my own bodgy repairs that looked ugly but had probably another 3 layers of glass on the nose. The nose on my board didn't crack much after that, even if it didn't look pretty.
My advice on this is, repair the board and make it strong. Get a nice repair and paint job done if you want to sell it.
Just to ramble on some more, I thought it was funny when I asked for some more footstrap inserts to be put into a board I have, and it came back looking pretty, but with only two extra footstrap holes. A year later when I got frustrated with it and did it myself, it had another 5 holes on each footstrap position, and was perfect

I guess the repairer didn't realise that I prefer functional over pretty.