Re: Js100 neck vs. Js1000
I'd recommend waiting/saving for a JS1000. I've been watching them over the past year on Reverb and it's not uncommon to find one in the $500-$700 range (not too far from JS100s); they will typically be worn, but with a little work can be made close to new. In fact, this is exactly what I did recently -- bought one for $500 that was in overall good shape, but had some chunks missing in the finish. I refinished it in "Muscle Car Purple" like the JS2450 and added chrome hardware, turned out pretty good!
The nice thing about getting a JS1000 is having the neck and a solid trem (mine had the original Edge). Hope that helps!