This is how it shows up in the openhab log now:
Item ‘Alexa_SpeakTTS’ changed from to Current Gas Price is $2.099
So I think your solution would work!
The only issue now is that alexa is instead of saying the sentence is telling me:
“I’m having trouble accessing your Simon Says EU skill right now”
After googling about it is seems to be the amazons own skill they use for TTS see: OH 3.0.0.m2 Echo control "Simon says"? - #7 by mancer and see Test Adapter Alexa2 3.0.x
I guess theoretically it would work but currently there seems to be an issue on the Alexa Server Side or how would you guys interpret that answer ?