Got mine at Joshin -- I know they have them. Satisfied with it except... for one overly bright pixel on the left side of the screen. It's outside most reading margins so I don't mind, and I usually forget it's there, but I am too lazy to replace it (I think I have about a year?).
Looking for accessories, maybe this Tuesday I will go to Yodobashi Umeda. The Joshin I went to had none in stock except for Kobo Touch accessories.
25 years is more than my lifespan. I think you are just being modest.
By the way, Nishinomiya is closer than Kyoto to Umeda (depends on where in Nishinomiya ofc) and that is where I bought mine. (I live in Kobe.) I could probably just as well have gotten one in Sannomiya.