Yes but the results you'll get with the prime lens is so much better than you'd get with the zoom lens. Also try to get the same handheld shot with a wide range zoom as you would with the prime @1.8 and you'll appreciate the difference, that's 3+ stops faster than the average 5.6 zoom. I've still got an old 50mm 1.4 in my bag that gets used for those occasional night-time excursions.Yeah I looked at 2.8 lenses.. its a disgrace how the price shoots up.. you can pay more for a 10mm prime lens with f1.8 than for a good wide range telephoto.
(P.S. is my sig to big?)
PS: What's shaave?