See for yourself:
Buzzard price: 1,75 mln
Trash talk (high) payout: 15,000
After 116 missions like this you will start earning profit.
Meanwhile you can also do Crystal clear out III, Mixed up with Coke, LS Connection, Chopper tail, Base invaders. Those are high paying missions ($13,500 min for Mixed up that will be dramatically easy to do with Buzzard).
Before you purchase it, you can practise for free in mission Defender: 2 buzzards are provided, easy to solo, $17,500 for one run. You can easily land near starting point at the end of the mission and start over immediately.
Buzzard is real investment. Even for casual player, it's a tool to earn easy, risk-free money SOLO with $200 expenditures per mission.