Brushes are like women some fit some don't
I have 4 brushes
1. Burma Shave $4.95 Walmart (Still great)
2. Van Der Hagen $8.95 Walgreens (Floppy POS)
3. Col Conk Pure Badger $40 (Great Travel Brush/Gym Brush)
4. Shavemac Silvertip 28mm Ebony $169 (Yeah it is really worth it)

The only true difference in Badger vs Boar is the water holding capacity
and the softness of the bristles..
If you are a soap user the boars and the even cheaper synthetic work fine....
If you like creams then a Badger does produce a richer lather...
Just some random thoughts here....