Unlike you I actually grew up with a C64 and used one as my primary computer for 4 years, until I bought my 128. I spent countless hours daily typing on it and found it quite comfortable.
I have used my breadbin C64 even longer as my primary computer, I can't say it was an unpleasant experience. I actually prefer the breadbin box over the C model, go figure.

If the C64x case were half the price, I'd have one instantly (when available, I wouldn't pre-pay). But the current pricing is just ridiculous, so no breadbin for me.