I guess we are rare, but really so what.
If one's digital camera works appropriately and gives one results/satisfaction along with the lenses one has purchased (old/new) that should be enough.
Maybe it appears as a rarity to use Pentax in these times because the number of brand names have dwindled and really Pentax marketing is non-existent compared to Canikon.
But I take comfort in knowning that back in the early 80s, (when I first started with the Minolta system) Pentax was always named in any serious photography discussion. With its lenses considered among the best, it was a serious system to consider.
Rare or not , I feel great owning a Pentax dslr nowadays! And save some bucks in the process.