As soon as bike FI systems improve to catch up with automotive FI systems, many people will be throwing away their carbs and retrofitting FI to their bikes. Also, carbs will disappear completely from production bikes for at least 4 reasons:
1. There will be no need for choking, so you don't have to think how much choke do I need on a 45 degree day, it will occur automatically (like your new GSXR).
2. Overall FI systems can be at least 30% lighter than carb systems. FI using fly by wire (no cable) will be used soon to save even more weight.
3. Fewer number of parts and screws in FI system than carbs. Imagine never having to mess with floats, float needles, bowls, pilot jets, main jets, needles, diaphragms, etc. ever again.
4. Use of an O2 sensor with FI yields maximum fuel mileage, where a carb system cannot lean itself out at constant speed on the highway.
FI systems and computers also provide us with more tuning options (accel fuel maps, constant speed fuel maps) than any carb can. Changes to these maps can be made in a fraction of the time it takes to rejet.
Also something else to think about with elevation:
From sea level to 7500ft you lose about 25% of your engines power and at 15000ft you have only 50% left (SAE standard calculation).