I didn't like to fly my favorite Q400 over TrueEarth Netherlands because at a regular cruising altitude I can't see any of the detail down there, which is a real shame. Distances in this country are also too short for high flights. So... I flew the C172 low and slow over the scenery... But I really missed my Q400...
But then I thought 'Why do I do this...?! Who is telling me what I can or can't do in my sim?! No one!' So I decided to let go of my need for realism in this regard and started to fly my favorite plane at 3000 ft all over the country... and it's absolutely GREAT!!! I am having a ball flying the (imho) best plane there is, using my detailed checklists and all, while still enjoying the best scenery there is to the fullest!
Lesson learned: don't restrict yourself without reason. In the end it's all about having fun!