Should I buy this acoustic?

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: Hi all, : There is a second hand dealer down here in Australia who is selling a Yamaha FX - 310 electric acoustic guitar. It is good condition, apart from what the dealer describes as a "small hairlike crack" where the neck meets the body. The crack is about an inch and a half long and from the pictures I've seen is very thin. Is this likely to affect the tone of the guitar? Is the crack likely to get worse over the years? Do you think the price of $210 Australian dollars is good (this works out to be roughly $110 US dollars)? The guitar is a present for my girlfriend who has never played before. : Thanks for your time, : Mat