You reach a point of diminishing returns after a few dozen languages, let alone 1000+.
The 100th most common language in the world is spoken by about 7 million people, which is something like 0.1% of the population.
By the time you get down to language number 1000, you are at best in the 100's of thousands of speakers, probably less.
Consider all the millions of dollars sunk into building "Remote Translation Offices" all over the world, translating "literature" into obscure tribal African or Asian languages that maybe, at best, a couple hundred people will ever read.....
Why, you'd almost think that the WTS is more a real estate development corporation rather than a "religion".