In all the talk of graphical downgrades no one seems much preoccupied with 'why?'. Why build something and then proceed to tear it down, piece by piece, in the hope that ever more diminished expectations about the final product won't be severe enough to...
For better landings always catch your runner in mid-fall.
Magnets are useful, but not if you're not earning as much as you're collecting.
Fun thing is some of the power-ups work best in tandem so experiment and see what works with what.