There wold be no way I would buy a gun in 32 caliber! I am NOT saying it isn't a viable SD round either, it is just a fairly new round that IMO won't be popular very long and will be hard to find and costly at best. Also IMO, the 32 won't do anything a 38 spl. won't. While the 38 spl. has been waning itself to the vastly more popular 9mm, at least there is still a descent supply of ammo available.
There have been many "Wildcat" cartridges that have come and gone and I for one do not want any part of them. Especially since they are nothing spectacular to begin with. Wait 10 years and good luck finding a selection of 357 Maximum, .30, 357 Sig, 41 mag, 10mm, 38 super, 17 H&R Mag, etc. It's one thing to pay for the gun - it's another thing to feed it with practically available ammunition at a price reasonable enough for you to actually practice and shoot with.