

SONY VEGAS did it some years ago, they finally stopped to produce video editors in 32 bits. Is like if I sell you a flat, with 8 rooms and you only can access four, because the other four are closed with a lock.

Wonderful, you have wasted the money, because with a 32 bits operating system you only will access to 4 GB. So many laptop makers (in the past), as a marketing tool, they sold you a 32 bits laptop with 8 GB RAM. Why? because you have access to all the memory and with 32 bits, you only have access to 4 GB of RAM. What you state is very interesting, because most of the video editing software (serious and professional software) run in 64 bits.
