This is something near and dear to my heart as much of my job is rescuing and refurbing older instruments and lab gear. For an established professor with big grants it's not so big a deal. They can afford to buy the latest and greatest.
For our new professors who are just setting up their labs, reusing older gear can make a huge difference. That's research and grad students they might not have been able to fund otherwise.
I want more people working on the world's problems across the globe rather than just having some select few coming to tech centers in the west and leaving their countries behind.
Here in the US, we're good at coming up with solutions that work in our economy and society. Often, they aren't practical in other parts of the world. Having the research going in those areas tends to lead to solutions that work in those places.