Momto4girls,
A lot of opinion on which is better, in fact you can read the manufacturers sites until you will even be further confused. We have a Sevylor Colorado and camp with a really good friend and his family that have Sea Eagles, and here's what we've noticed.
First, inflatables are definitely more prone to be affected by the wind. They tend to be so buoyant that they sit on top of the water, sort of bubble-like.
Of course, inflatables aren't as tough as composite kayaks. That being said, I would say that our Sevylor CO is tougher than the comparable Sea Eagles. The Colorado has comparable air vinyl/pvc air bladders, but the Colorado is covered in a tough fabric slip cover (cadora-like fabric) that protects the air chambers. Then on top of that, the bottom is rubber coated to even further strengthen it. Don't take me wrong, as I don't think either would stand up to a box cutter or barbed-wire?!
I think the Sea Eagles may be a bit lighter and compact when packed. It all depends on the model. I think the Sevylor Fiji or Tahiti may be more comparable to the Sea Eagles, but I haven't experienced those more economic models.
Inflatables are compact, and that is why we went that route. Our Colorado fits in the bench seat (heater side) of our 2720 along with 3-fishing rods, 2-adult pfd's, and the air pump. Sometimes we also pack our 2-inflatable paddle boards on the floor by the kitchen table. Loads of fun.
We've had our Colorado for at least 5 seasons and I purchased it used out of Florida. I believe the new model (yellow) may even be better than the blue one we have. As for maintenance, I do attempt to make sure it is fully dry prior to storage. Annually I bring it inside, vacuum it out (sand & pebbles), and wipe the vinyl air bladders with 303 protectant = ready for next year's adventures.
Spare Parts - Sea Eagle is easier to get replacement bladders and parts for. Sevylor only offers spare parts in Europe, and when you factor that in with shipping, you may as well buy a replacement Kayak and use your old one for spare parts. Accessories, you can get motor, motor mount, rod holder, etc for the Sevylors, and I'm not as familiar with the options offered by Sea Eagle.
Comparable models - Sevylor, Sea Eagle, Intex, Airhead, Advanced Elements, NRS, Solstice, Aquaglide, Ozark Trail, BRIS, AIRE, Hobie,,,, and the list grows on a daily basis.
Don't rule out Stand Up Paddle Boards (iSUPs, SUPs). My wife and daughter love theirs iSUPs, especially on lakes. Also, I'm super impressed with Sea Eagles new inflatable canoe, although they are a bit proud of them.
I've attached a few pics below, First is my son and I on the Niobrara National Wild & Scenic River 06/2013, second two are a lake in the Rocky Mnts 09/2014.
I hope this helps, but if you are like me, it will only make the decision more challenging. My advice, is don't shop too long,,,,,,Just get out on the water, and enjoy. Be Safe!