Hello, I am really new to photography and I'm still learning a lot, taking a class and just bought my first used DSLR, an older one, 300d but figured it's a good start for me.
I have a question about shutter actuations. I see many people referencing this when selling their cameras and people ask about it all the time. I have gathered that a camera's shutter only has a certain life span and I guess after so many shutter actuations the shutter is bound to die out?
Question is, if this happens to a camera can the shutter just be replaced or do you basically have to buy a new camera? Is it really expensive to do this??
If the shutter can be easily replaced then why so much importance on how many shutter actuations a camera has?
I'm thinking that because there is such a strong emphasis placed on it and people seem to always ask about this that it is very costly to replace a shutter on a camera.
I guess i am just wondering because the DSLR I bought is older and the owner did not have it for very long, did not use it very much but also did not have any info about the shutter actuations or it was not posted in the sale ad.
If this is a stupid question sorry for my ignorance but I'm just trying to learn about all this. I did do a search on the board for a topic similar to this but could not find anything.
Thanks in advance for your responses 

