I do share your sentiment. I live in a country with lots of "dust". I had concerns after reading people reviews but went ahead and bought the latest 2018 version.

Two things:

1- I really enjoy the new Macbook Pro keyboard. Way more than the 2014 one.

2- It is really dusty and I need to clean every week. Partly, because I work on cafes a lot.

So far (6 months), it has been going strong. No issues (the trackpad can be annoying at times, but that's it).