It's also a trade-off between a functional computer and a brick. (I upgraded someone's MBP to Lion(?) and the graphic accelerated GUI elements of that version

It's also a trade-off between a functional computer and a brick. (I upgraded someone's MBP to Lion(?) and the graphic accelerated GUI elements of that version caused it to crash hard, often. Turns out it had a desoldered GPU for which a recall was issued, but Apple still refused to fix it.)