If I could find a knock off that is just like it (it really is quite different from anything I've seen) I'd be on that like a fly on manure! LOL
Actually I think you would like it for your GTP. Not so much because he/she would prefer it, but it makes cleaning so much easier, esp with the tiny but frequent "messes" they make. The bigger and different colored chips in ReptiChip make that more difficult, imho..
Edited to say, even if you got the ReptiChip ground up a bit, it would still not feel like the Reptile Prime. Hard to explain but the Prime is fluffier, softer feeling. Not just smaller chunks of ReptiChip. But yeah, I would love to be able to find it elsewhere..and cheaper!