Don't sell that KX2 (or the new antenna analyzer) just yet!
Hoping to "build on the success of the highly successful 2016 National Parks on the Air" event the ARRL has announced the International Grid Chase for 2018.
It appears that contacts will be valid on all bands (except 60m) and modes. Collection of grid squares during a QSO or contact are not necessary as long as participants are LoTW users. Their grid squares will be logged and credit given as part of the upload process.
The full dope is here.
As I recall, the NPOTA event started off with a whimper but gradually gained much momentum over the course of the year.
I applaud the ARRL for coming up with this idea as it provides the opportunity to operate portable mobile, RV portable, etc, activating "rare" grids in areas with sparse ham populations.
Now, in which grid square is Bouvet...