Dave is looking for a good camera for taking pictures of paintings. Leo says he'll want a good camera that has a wide angle lens, but he won't want it too wide because it will show some barreling. Detail is even more important, and a great lens makes a huge difference, as does accurate color. A large sensor helps with that. Sensors in camera phones are really tiny. A camera has a larger one and the bigger the lens, the more costly. Ideally, he'll want a full frame sensor.
Tom's Nikon D40 was stolen. He'd like to get a new camera that has similar capabilities, but is smaller in size. Leo says that cellphones these days have more megapixels than that D40 did, and so long as he still has the lenses, the body is easily replaceable. The Nikon D7100 is an option, but since Tom wants a smaller and lighter camera, and he doesn't care about the lenses, a prosumer point and shoot may be the better option.
Jordan has a budget of about $1000-1500 for a good camera for a trip to Hawaii. Leo says that's a great budget for an interchangeable lens camera like a DSLR or a micro four thirds camera like the Olympus OM-D E-M5. These are excellent cameras with good kit lenses.
Digital Photography has come of age and there are so many excellent choices that it's hard to go wrong.
Burt and his wife are traveling to Europe this year and he wants to get a DSLR. Leo says that Canon just announced two new cameras, the EOS T5i and the Rebel SL1, which Canon says is the world's smallest digital SLR. Leo, though, has recently switched to the mirrorless micro 4/3s format and he loves it. It's the Olympus OM-D. It's very thin and light, and he can have interchangeable lenses.