It's telling that one of the images Epson released with the Pro G Series is one of a brightly-lit living room. You'd need a lot of lumens to watch a projector in this room with that much light.
The 6970's "little" brother "only" has 5,200 lumens. Still more than the $60,000 Sony laser projector -- though that projector has more resolution, a higher contrast ratio, wider color, and more.
If you still want tons of light but don't need the interchangeable lens options of the Pro G Series (or its price), the 4855WU has 4,000 lumens and is around $3,000.
JVC hasn't changed the look of their projectors in a while, but that's OK, it's what's inside that counts. In the case of the X950R that means a claimed 1,900 lumens and 150,000:1 native contrast ratio.
If you really want to impress your neighbors, the VPL-VW5000 uses a laser light source for P3 color, HDR, and a claimed 5,000 lumens and 1,000,000:1 dynamic contrast ratio.