Comet is amateur/hobby grade stuff. Would probably work just fine for what you are doing.
The Laird is a commercial antenna with a reputable background in commercial type applications. Since a lot of the cost with installing antennas like this is in the labor (yeah, I know, you'll do it yourself, but there are risks), usually putting up a good antenna that will last a long time is a good plan. Putting up some Chinese junk antenna and then having to replace it in a few years isn't what you want.
The type of antenna you need really depends on the exact application. Antennas will be shown as having a certain amount of 'gain'. Gain is relative to how they design the antenna to focus the radiated power. Antennas with higher gain direct more of the radiated power towards the horizon (or just slightly below in what is called "down tilt".
Throwing more of your radiated power out at the horizon can give you better performance farther away from the antenna. Read that as "more range".
But that can also backfire. Focusing power at the horizon can be detrimental to coverage if your antenna is on a very high hill, or if you are located down in a valley. Blasting power over everyones head, or into the side of the hill, isn't always the best approach. There are times when lower gain antennas will out perform higher gain antennas. Lower gain antennas will allow more energy to be directed above and below the horizon.
So, depending on where you are, picking the right antenna can make a big difference.
Looking at the terrain around Gladys, VA
shows low rolling hills. A high gain antenna like the Laird might be a good choice if you can get it up high enough to see over the local terrain. Lower gain antenna might not be a good solution.
So, I'd probably agree with you on the Laird. Good antenna that will last a long time. Feed it with the best coaxial cable you can budget for, get it up high, and make sure you properly seal the outdoor connections well.