I imagine (perhaps wrongly) that you are really interested in getting better quality wood at less than big box store retail price... if so:
1 - I found some people in Calgary (Alberta, rather far from you
) who buy a lot of hardwood, use most of it themselves, and sell the stuff they
don't want for about what they paid for it in multi-skid truckloads. The jatoba I got from them was first class, one third retail. There must be someone in
south Florida in the same position.. ?
2 - if what you want is thin wood, and you have a good planer with throw-away knives, hardwood flooring (especially remainders available via craigslist and other sites) is usually much cheaper than raw wood. I'm paying Windsor plywood here $16.50 a board foot for Santos mahogany, it's widely available here as flooring
for under $4 a square foot. It's half the thickness once you clean it up, and has short lengths, but it is cheap, nail free, and of consistent quality.