brp
TUG Member
For LV, Orlando and the more "common" places, that is most likely true. Where a HGV ownership can really make a huge difference in your lodging costs are some of the more "uncommon" places, such as ski location during peak ski season (Breckenridge or Park City) or ocean front units in Hawaii, South Carolina and SW Florida. If you use those locations, owning can save you a significant amount over renting.
Kurt
It's also worth taking into account what you get with ownership versus rental. It is usually possible to rent for less, but the accommodation may not be up to the same standard at the lower rate. And, of course, that may not matter. But is is a factor in the equation.
Cheers,