Replace Transmission on 2003 Honda Element?

I have a 2003 Honda Element with 149,000 miles. Transmission has gone out, replacement will be $2,300. The car is paid off, and I had hoped to drive it to 200,000 miles or more. However, I just had a $1,600 repair of an electrical component a few months back and now this. I’m also being advised that I should not replace a transmission on a car with this many miles as it means everything else will soon start to fall apart also. So do I replace? Do I get a new care?