as someone who has played semi-professionally (taking lessons, going to music school, etc), i recommend the budding guitar player to bite the bullet and buy right away a top-class guitar. every guitar is different, be it neck shape + size, weight distribution, strings pull and action, tone -> palming, and you really want to invest as much of your time on the final instrument rather than go through bad instruments that you develop habits for which you later have to forget.
as for acoustic guitars, they are even more expensive at the high end. ask yourself if you are going to need it for its acoustic sound, or for its recording sound, theya re different. will you be using the guitar unplugged, or will you be micing it up/plugging it in (some acoustics have piezos and other pickups systems)?
given that acoustics are much harder to play than electrics, because they require more strumming and picking strength, and the strings are much harder, various makes can differ enormously; for example, i favour Ovation, even though they have a reputation as mediocre guitars, because they are easy to play and already set up for micing.
because of these things, you would be looking at spending even more on a good acoustic.
think about that
did you think?
ok, if that's what you want, go ahead and buy one.
buying an acoustic is a long and painful process. you go on a toru of guitar centers and you try and try and try; it is said that, when buying houses, you should visit ten - yet the vast majority of people settle after three.
people are just made like that. you should not be like that, you should go and try enough acoustics until you hate it, then take a break and then finally decide.
guitars, like amps and cabinets, will likely last you for your whole life; is this really the time to save money?
also, old guitars tend to be worth even more than their original asking price, more so at the high end.
i wouldn't be shocked if a top notch acoustic ran you north of five grand.