Yep, if you want the Broxa to be game-able, you're going to need to spend some money on upgrades.
ONLY BUY THE BROXA IF YOUR WILLING TO SPEND $100+ ON UPGRADES
Personally, when I got mine,
I bought a lipo and charger... $60
Decided that the mag epic fails... $30
Blown the gearbox to smithereens with the lipo... $80
Decided that the hopup, cylinder sucks and inner barrel sucks... $80
Krylon is fun... $10
Trust me, upgrading is addicting.