It looks like the main difference is the size and camera? Is that it?

Which one do you plan to get, or are you uninterested in Galaxy-Mania this time around?

Well both use the Qualcomm snap dragon 845 cpu, but the main differences are:

• S9+ has a second telephoto camera
• S9 is larger
• S9+ has a 6.2 inch (vs 5.8 on the s9)
• S9+ has 6GB or RAM

The S9 overall (including the +) is not radically different from the S8, just some spec bumps, but I'd personally grab a Note 8 or wait for the Note 9 in the fall.