In defense of the guy that asked the question, he never said a word about money or trying to make a return on it.
Keep in mind that although panthers do lay a decent number of eggs (23-27 is typical at least for me), they generally have a lower hatch rate than something like a veiled chameleon. The reason panthers are expensive has more to do with the difficulty breeding/hatching them than the fact that they're "pretty." Everyone wants a panther, and everyone would buy them if they could afford them, but the current round of breeders can only produce so much, where something like a veiled can be mass produced relatively easy (large amounts of eggs foolproof incubation high hatch rates = flooded market = low prices). With panthers you don't have these problems (yet) since they're still trickier to get out of the egg than veileds are.
Also keep in mind that if you were to get a pair of, say, Jacksons chameleons, breed them, sit on the female for 6-8 months and wait for the drop, IF the babies were slugs or didn't make it, you'd basically be out of your 6 or 8 month wait completely and you'd be starting from scratch. If you had gone with, say, a veiled, you would probably have a second clutch incubating and halfway to hatching if your first clutch went downhill for one reason or another (so you're only out 3 months if your goal is producing babies).

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Tyler Stewart
Las Vegas NV
www.BLUEBEASTREPTILE.com