For the time-being, about the only 'benefit' of the Part 107 Remote Pilot Certificate is being able to fly your drones for hire or in your job. Otherwise, the Hobbyist certificate is fine for recreational flying. If you're wanting to fly drones for hire, that's a very big benefit.
All drones heavier than .55 pounds require either the pilot's recreational certificate number or a commercial registration number. Drones or other model aircraft heavier than 55 pounds require an airworthiness certificate similar to piloted aircraft.
You can get the hobbyist cert for $5 after checking off a list of safety regulations, download the certificate to print (I laminated mine) and carry with you. Put the registration # on any drones you fly off your property.
The Register your Drone link on this FAA page gets you to one of the registry sites:
Getting Started
Later this year the list of safety regulations will be replaced by a tougher test, so it's easier to do now than it will be.
You didn't mention where you live, but in our fair city police, park officials, and an 85-year old RC pilot walking through a school yard where I practice have all asked to see my registration number. When I showed the park manager mine, plus a 3D map of his park done by DroneDeploy he gave me his card and asked me to call him when I got my 107 Cert and asked me to go practice at a new, 80+ acrer park way out of town being developed as a venue for large events and send him the video and maps.
So, for me, the 107 cert's a big benefit.
If you won't be flying for hire or your work the hobbyist cert is all you need. If you want to practice for the commercial certificate and get your website and portfolio together to sell services, you can do that with your hobbyist cert.
Drones, whether flown with a commercial or hobbyist cert should not just pop up in an airport's airspace. (I'd hate to be the guy zipping along in the neighborhood outside Teterboro's fence without a certificate.) The pilot gets clearance from the tower like any other aircraft, by phone if you don't have an aviation band transceiver. Parts of the FAA 107 cert are how to read a sectional chart to identify classes of airspace and radio procedures. We expect later this year the procedures will be streamlined so FAA 107 certificate holders can get clearance quickly without waiting for paperwork with the request to go thru. DJI and other manufacturers are cooperating with aviation officials so that a next generation of drones may be transponder equipped to facilitate identification of drones.
Of course, a goal of this is to identify the 'good' drones so any that pop up without clearance can be taken out of the sky. After Gatwick and Newark incursions the drone boards are full of tech like 3D shortware radars that can accurately detect drones, drones to hunt and take them out of the area, and a host of shoulder mounted drone killers to take them down.
I hope this helps?