why use a spotting scope instead of just binoculars?

ones I might be interested in

• @opticsplanet.com
  • Alpen 20-60x80 3.5lbs, 17.5" long, 3.1" diameter, $360
  • Alpen 20-60x60 2.3lbs, 14.1" long, 2.4" diameter, $180
  • Alpen 15-45x60 1.7lbs, 13" long, 2.4" diameter, $160
    RVWs: [1]
• @adorama.com
• @wayfair.com

more info

• Alpen manufacturer specs
• reviews of specific accessories:
  • Alpen Micro Adjustable Tripod [1] [2]