Honda NC 700 X Purchase advice

Hi, have a few questions since I’m doing my A2. 1. Would you rather recommend the NC700X or the NC750X ? 2. Are the two equal in size ? 3. Do throttled engines have any disadvantages compared to motorcycles that are standard designed to 48hp ? 4. How can it be that I have to have 7000 numbers for the NC700X near me and elsewhere there are some already for under 5500 ? Where is there the hook ? Thanks already