Great! Inexpensive zoom lenses are getting better all the time. And manufacturing processes are likely also improving. The gap is narrowing.

But, at least today, you still get enhanced features on the more expensive zoom lens, such as wider aperture, and a constant maximum aperture across the entire zoom range. Neither of those things necessarily yields a superior photograph -- you don't need f2.8 across the whole zoom range if you're taking pictures at f6 -- but they can be very helpful. If they're worth paying for depends on one's personal needs, desires, and budget.