Trusty 32SII dying - should I get the 35S or 50g?

[inaqui76]

I'm a structural engineer. During my university time I used a 48GX, then I bought a 32SII wich I used for years until (same as you) some buttons started to fail.
So I went back to the bulky 48gx until I found (in Argentina) a WP-34s and I fell in love with it. I like the small size (similar to 32Sii) and for a every day calculator it is perfect. Also I have a little program for calculating concrete beams that I could port it to the WP-34s.

So, my 2 cents go for the smaller one.