I've known known a lot of Bethelites and it never ceased to amaze me when asked why they wanted to go there the kind of answers I got. Some included:
My mom used to have dinner ready for me every night when when I was pioneering before I got married. When I got married I got tired of having to cook dinner every night and pioneer. So my husband and I applied to Bethel.
The circuit overseer's wife told me that going to Bethel would be a way for my husband to be able to serve Jehovah full-time and I should be supportive. I agreed to do it for one year only.
The weather (snow and rain) makes it difficult to get my time in pioneering...I knew Bethel would allow me to serve Jehovah full-time uninterrupted (sounds good but now I realize she just didn't like to get wet or cold). This same person admitted to me to praying for a change in assignment - and according to her Jehovah answered her prayer - she went from a mundane menial labor to an office job.