As pointed out above, if the piddly merch discounts mean anything and you anticipate wanting to get into TOTWL events, etc., you'll probably want the direct buy minimum to grandfather you in at 150 currently. Not that Disney can't decide to yank the grandfathering in future :::::grabbing tissue:::: AHHH-Cheapek!
Anyway, it feels like a deal when I blow 2 Bens+ at Basin White and get 15% off (when that
DVC discount is offered)--which I definitely can do.

Spreadsheet-wise? Naw, not saving but negligibly since we'd get 10% putting it on the Disney Visa. It's just a feel-good basically. And those feel-goods do add magic...
Okay, so we bought in VGF direct at the 100pt minimum and added 25 direct a couple years later. We're still glad we got direct points just in case for those little member niceties even though we rarely do any events. And that 100 pt one would be the one we keep if at all possible to retain benefits.
This year, we added a 150 VGF resale to ensure we can manage a 1br whenever we go. The 50 BWV is just for an arrival night 1br wherever appeals. So, where are we staying that night next trip? Yup, modified to VGF. Figgers.
That's why I'm a major promoter of "Buy where you love", because you'll probably end up modifying or selling to add more nights there.
So, were I you, I'd start with 100 resale, maybe fewer. Then, I'd add 150 direct asap and tack on small resales to total as many points as you'll use annually. You can get yourself too points-heavy by buying beyond 50 or more than you'll absolutely need for a 1br wherever you may want to stay whenever in the year. 50 more points gives you a cushion for when DVD reallocates and bumps the point cost to where you're forced to cut your stay a night, borrow every year or buy one-time-use points. Guess why we added that 25-pointer?
As for possibly splitting between VGF and CCV (or BRV), I'd still sock the money into the resort I love best. If not a full week, you can generally work a split at 7 months at all but the top demand times of year like Christmas at CCV, for instance. Alternate years, booking your true-love resort at 11 months and modifying at 7 months for a full week elsewhere. That way, you've a fallback you know you'll enjoy if the 7-mo. switch won't work without waitlisting, stalking...too much hassle for us. You might love the waitlist/stalking/walking adventure. We'd hate it.