I had a wireless remote for my D70 ( the same one as you would need I think) but have a wired remote for my D200.
I much prefer the wireless to the tethered one.
Reasons:
1. I could get much further away with the wireless I could be in a group shot, and fire the shutter. No need for tat pesky timer.
2. Totally eliminates camera shake (other than mirror slap) If I use the wired one on the tripod (common), I basically have to leave the remote swinging in the breeze. Some of that motion has to transfer to the camera. If I am inside and have a table nearby, this is not an issue, but outsode at full extension, it is. I could probably make up a strap to hold the remote to one of the legs, but I haven't done so yet.
3 It was much much cheaper.
4. Always handy,. THe little pouch it comes with attaches to the camera strap. Th wired one is usually in my OTHER bag when I want it.
Battery life was not really an issue. The original I put in lasted the time I had the camera (about a year) Pam hasn't used the remote yet, so I am not sure if it still works. Anyway, it uses 2320s from memory, which are almost as common as
AAs these days.
THe only downside experienced was that it had a blind side. Rage was much reduced if the sensor couldn't see the remote.