My Canon S90: should I trade it or keep it?

My granddaughter and her mom scroll through photos on mom's iPhone.

I'm wondering about a new camera. My Canon S90 was state-of-the-art when I bought it a few years ago. Today's model, the Canon S110, has dropped back in the pack; It is no longer a leader but a follower, an also ran. I understand both the Sony Cyber-shot RX100 and the Fujifilm XF1 sport better sensors, the all-important heart of a digital camera.

Plus, both the Sony and the Fuji boast zoom lenses opening to f/1.8 when used at wide angle. Very nice. The Sony seems a bit expensive, and so I am leaning toward the Fuji if I should make the jump. But, and it is a big but, my S90 is still delivering. I still get the pictures with my present camera kit. I can wait, and save. And the rumour mill has it that the next generation of my beloved camera will have the much lusted after f/1.8 lens, and maybe an improved sensor, too.