I guess the time is not really an issue for us. We arrive fairly early in the day and when deciding if we wanted park tickets on arrival or departure day, we decided on arrival, so we do have plans to go to MK that night but our plane lands before noon so I 'm not worried. I guess what I was asking is should I check my own bag, and ride ME, or have them handle it, and still ride ME. I've heard some people having not got their luggage for quite a while and I'm just worried about that. We do have a layover on the flight down so it would be kind of annoying if I had to get our bag myself and switch planes.
Ok, you're a first time flyer. Let's clarify how airlines commonly work (take DME out for a moment).
24 hours before your flight, you "check in". This is commonly done via an app or a webpage. If you're flying SW and didn't purchase EBCI, this will determine your position in the boarding line. Depending on the airline and what type of ticket you booked, this is when you'll find out what seat you're assigned. You'll need to determine how you're going to do your boarding passes. You can handle these through an airline app, emailed/texted to your phone, or printed.
Then you head to the airport. When you get to the airport, you park and you and your party go to the ticket counter for your airline (if you've already checked in and don't have any checked luggage, you skip this step). You'll present your ID and checked luggage, they'll weigh it (make sure you know what your airline limitations are), tag it, and put it on a belt to go to the plane. If you don't have a boarding pass yet, they can print one for you (could be an added fee depending on airline).
You then make your way to security/TSA. Whether you have TSA precheck and what your and your traveling companion ages are will determine how much you need to take out of bags, whether you need to remove shoes, and which scanner you need to go through.
After TSA, you go to your gate (look at the monitors to tell you which gate to go to... look at "Departures", then what city you're going to (note: might be an intermediate city) and match with your airline and flight #. Monitors will be throughout the airport). When it's time to board the plane, do so. The plane leaves. If you have a layover, you'll need to know if you have to change planes. If so, exit the plane with everyone else, look for the monitors for your next flight. Go to your next gate. Rinse & repeat until you get to your final destination. You do NOT get your luggage at your layover location (with RARE exceptions).
At your final destination, get off the plane, follow signs for "Baggage Claim". You may need to look at monitors to find out which baggage claim (match where the last plane you are on came from, which may be different from where you originally left from). Find your bags, then go to your transportation (rental car, own car, private car service, etc).
The only thing DME really changes about the above is you put yellow tags (provided by DME) on your bags before you hand them over at the ticket counter at your original airport and you'll eventually get your bags in your hotel room.
As far as why to choose DME (my opinion):
* Cost savings
* "In the bubble"
* Don't need to handle checked luggage
If you already knew all this, I apologize. But if you were under the impression you'd have to collect your checked bags during a layover, there may be other issues you don't understand/know.