I've taken to sticking my phone through the soundholes of a few guitars and viewing the photos, and the results are interesting. Some inexpensive Eastern factory guitars are much better finished internally than the 'big names', but I'm not convinced that makes any difference to the sound. Some older 'name' acoustics, including some Guilds, are pretty rough and ready looking inside (bracing straight off the saw etc.) , but still sound great. What do you think?