I bought one of these for a project not expecting much from it. I was pleasantly surprised. I got to use it to chisel up some ceramic tile and drill a hole. For $94 hard to beat if you're not gonna use it every day.
https://www.harborfreight.com/10-amp-1-18-in-sds-type-variable-speed-rotary-hammer-64288.html
This one seems to be closer in RPM to the Bosch but it's also closer in price
https://www.harborfreight.com/85-amp-1-in-sds-plus-type-variable-speed-rotary-hammer-58214.html