I have a BC29 with no fuge or sump and no skimmer. I just do 5 gallon water changes every weekend and I use phosguard, purigen and chemi pure elite.
I have no issues to report on my now 10 month old tank. Check my album for pics.
It wouldn't hurt but I think if you keep on top of it with the proper maintenance you can save the money for something else.
Just my opinion.
"When creating an aqua scape, strive for the beauty of imperfection, as its art and there is no wrong or right, it's left open for interpretation" James Findley