Buy an SDS AND a good quality cordless hammer drill.
It's all about the right tool for the job - sometimes that's an SDS, sometimes a cordless.
Get a cordless impact driver as well while you're at it. You can thank me later.
This
I have a Milwaukee M12 fuel hammer drill and impact driver set and the drill is good enough for 90% of the jobs I do. It's more powerful than you'd expect and nice and lightweight. The impact driver gets used loads more than I ever expected. Id be lost without it now.
I've also recently got an M18 CHX fuel SDS for when I need to do any heavy duty work. Between the 2 of them I've not come across any job they can't cope with.
I've got a corded DeWalt SDS but that never comes out anymore since I got the cordless Milwaukee. Dragging out the transformer (it's 110v) and cables is just a chew on and no longer worth it. Good quality cordless tools makes jobs so much easier