In my experience the more expensive homes always had built in ovens, sometimes with microwave (built into the cabinetry) and cook tops built into the countertops. Lower priced homes would more commonly have a drop-in stove and oven combo with exhaust hood/vent over it. Yet more and more I see most new construction at every price range, as well as remodels of higher price range homes where a drop-in stove and oven combo is used with a combo microwave\exhaust hood/vent over it.
Have times changed? I find it just out of place looking to see a $330,000 home with a drop in range/oven combo. Just seems like the wrong ambiance when you've spent $20,000 on all new counters and cabinets and tile to build or remodel the kitchen.