I always found it very tempting to look outside when flying IFR, especially when entering clouds, climbing/descending into/out of a deck. It is just cool looking when you are in the front (vs being a pax in back). However this can be very dangerous, and it is important to transition to instruments well before entering actual IMC. In a situation like this accident the desire to get to VFR and anticipating breaking out could be very disorienting. Climbing up through a deck the air gets brighter well before you break out and could lead to spatial disorientation if looking out trying to see blue sky.