Hi Fran
I bet that new Tryanor sounds great. I can see by what you say wiight must not be an issue for you with it being 50 pounds and your Rolands being 70 oounds.
For me, as far as weight, I'm kind of been there done that. So, even if something had the best sound in the world, if it weighed that much, I'd just walk right past it and not even check the sound, price.
I actually got a naval hernia that required surgery. In thinking back, I probably got it trying to carry my Peavey keyboard amp, the old big heavey one. It also was affecting my joints. Also, no way would I want to carry something that heavey even just for my hand's sake and then try to play keyboard.
My 2 pfennigs worth.