I put my $200k into dollarsavingsdirect.com (another Emigrant bank) about 6-7 years ago and remember their rates being uncompetitive fairly soon thereafter.
Back then I had plenty of spare time at work and didnt mind all the hassle and effort required to open a new bank account and transfer the funds. I moved it again a couple more times, again chasing an extra .25%.
It’s worth remembering that an extra .25% on $200k works out to something like an extra measly $30 per month after tax. It wouldn’t be worth the hassle for me these days.