Let me help you on this one based on my experience.. First, if you want to stay sane, putting kids in routines is extremely critical. Not that they live in routines all the time, but having your kids eat at the dinner table, followed by an hour of whatever play time you let them do in their house, followed by a shower in their bathroom, followed by stories in their room, followed by going to sleep in their bed at the same time they always do means they're going to wake up the next day and be normal. Taking them to a night day care where they're getting sensory overload from other kids, probably eat crap, and fall to sleep on a cot only to be woken up mid-stream to take them home means there's a good chance you're in for a grumpy kid the next day so you end up paying (one way or the other) that night and the entire next day.
Second, in home is way better if you and the other half want to get your drink on. You can't do that if you have to get in a car and my guess is DHS is going to call if you roll up to the night day care in Marco's Taxi. This is why it's also key to have a baby sitter that is of driving age.
Finally, you pay people well and don't nickle and dime them because once you find a good one - you want them to answer the phone when you call. A good babysitter is hard to find and it's worth paying a premium if you find the holy grail - which I consider a college age girl, with a car, without a boyfriend, that doesn't like to go out on Friday and Saturday nights, and needs money. Doesn't hurt if she's hot either.
I'm thinking you'll never need this perspective, but there you go....