Depends where you are. Maybe in expensive cities where space is at a premium. But suite hotels (with various levels of kitchenette/kitchen) in the US are not, in my experience, notably more expensive--though often have simpler facilities--than more conventional hotels. (Bedroom may not be actually a different room from living room area but is often at least somewhat separated. So may not help with kids. Stay in this type of hotel in the US a lot.)