If "where you want to stay" is the cheaper resorts because that's what your budget allows, which is the case here, then this is the same as buying based on points chart.
Only very very very indirectly.
If, because the home resort has a "cheaper" point chart, that leads you to buy fewer points, then it is "cheaper." Cheaper because you bought fewer points. And you bought fewer points, because of the point chart.
But.... BWV has a "better point chart" than BRV for example -- Looking at tonight, BWV standard studio is 13 points. BRV is 16 points for a studio.
So is BWV cheaper than BRV? Looking at current average resale prices, buying 150 re-sale points at BWV would be about $23,000. Buying 150 re-sale points at BRV would cost about $17,000.
So the point chart was totally irrelevant to the price UNLESS it changes the number of points I buy.
I'm not saying to ignore the point chart -- But "good" or "bad" point chart is irrelevant in itself. It only matters if you then convert it to the number of points you are going to purchase.
But if you know you're going to be buying 150 points regardless (or whatever total), then the point chart has no impact on the cost -- It only possibly affects the number of nights you can stay.
Which again goes back to "buy where you want to stay" -- And part of that calculation may very well be, "would I prefer 6 nights in resort ABC or 5 nights in resort XYZ." (In many cases, the point chart differences aren't big enough to change an entire extra night, often it will be a fraction of a night difference).