Well, a crested gecko does not need UV light or as high a temp. They are best provided heat via red lights (don't bother with the bulbs at the pet shop, go to a thrift store/Big Lots and buy the regular 40 watts for much less than the overpriced ones in the shops). Terrarium; simple 20 gallon tall tank with a screen lid, a substrate of orchid, cypress or hardwood mulch to maintain humidity, plus cork bark, bamboo, and/or plenty of plants to hide in during the day will suffice for one or two crested. BE SURE TO PROVIDE HIDES IN THE WARM AND THE COOL END OF THE TERRARIUM! And yes, feeding is a little easier because the cresteds are not picky, but don't think they can eat babyfood all their lives. Spray tank to maintain humidity at 55-75%. Provide calcium/D3 supplement.
Bearded dragons, by contrast, are more terrestrial and need bigger tanks, with a 40 gallon breeder tank required for even a single specimen. Standard tanks are not wide enough for adult beardeds. The prefer moving targets over vegetable matter when it comes to food, especailly babies. Babies should be fed daily, but adults only need to eat sizeable meals three times a week. Up to ten crickets plus some Romain lettuce, spinach, apple, and or honeydew mellon will be fine for an adult, add a calcium/D3 supplement at every feeding for babies, every other feeding for adults. They need UV light as well as powerful basking lights, temp should be at least 95 on basking sight, 80-85F in cooler end of tank. These lizards can withstand low night temps into the 60s, and they can be placed outdoors during the late spring/summer and into early fall. A water bowl for soaking aids in skin-shedding.
My main peve about bearded dragons in the house: the adults produce a lot of feces, and it stinks, especially if they are being feed a lot of greens. Crested, however, have the issue of too hot temp can kill them. You leave young crested in a room that gets above 86, and they will most likely end up dead. At the same time, however, people often make the mistake of "Oh, it's nocturnal, it can live at perpetual 70-75 forever with no temp gradient". That cheap idea is why you often see so many posts in the Rhac forum titled "crested gecko stopped eating" or "crested gecko hides all the time, do appetite please help!"
Anythign else?