In my opinion, range shouldn’t be your deciding factor. Z-wave plus has many more benefits. If you can wait the extra time, the GE z-wave plus series provides excellent value.
If you have a little more money, Homeseer switches could be for you. Homeseer also has added capabilities like scene control. You will need to explore the DTH options for Homeseer, however.
Check out this FAQ from @JDRoberts on the benefits of Z-wave Plus.
FAQ: Is Z-Wave Plus Better than classic Z-Wave? Is it Backwards-Compatible?