So, I'm about to purchase a replacement sump pump. I've posted before about my 18" sump and having a back up pump. Anyway, I plan on buying a replacement for the primary pump which is a Pro Flo. With the limited space in the sump, it would be nice to get the same physical layout of pump so I don't have to move both pumps, but Pro Flo pumps seem to be only available from a distributor and are in the $300 range, where a Zoeller (different layout) is available for $130+. The Pro Flo does use a Rhombus vertical switch which I've seen recommended. Is the pump worth more than twice the cost???