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Yes, I know the cheap laptop thing, I had to take apart a barely one year old one to clean the dust out of its fan. (compared to others which have lasted years but have never needed to be cleaned out) I haven't known of any massive failures in them yet though.

Yeah, it would be better in the long run to get one durable laptop than several cheaper ones. But I've seen posts about Macbooks needing logic board replacements, etc. Is that a major issue?

If I was to get a PC though, I'd definitely look at the higher end.

MBPs are generally fine, obviously you'll see people post about their problems on forums like this but generally speaking they're solid computers. The only person I know who's had logic board issues with a MBP had them because the computer made friends with a glass of water.
 
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