Yes, HHI is more expensive to close.
By law, all closings within SC , must go through a SC based attorney / law office. The go to office for HHI
DVC properties is Wilson Law Firm, located in Hilton Head SC.
Some other title companys (based in FLA.). "sneak" by and are able to close the HHI properties and could potentially cost a little less $$$, than through Wilson Law.
If you need anything other than a BASIC closing (like a title search and insurance) it must go through Wilson and will cost a bit more.
We just purchased 220 HHI points (for $50 per point

) and the closing costs, including title search and title insurance was $660.20 for everything. That included, title search, attorneys fees ($350. fee) , title insurance, recording fees, city/county tax / stamps , Hilton head transfer tax, and recording of the waiver.
BTW, Vero is different than an HHI closing, since Vero is in FLA.
$750. does sound high for 150. points, I would check in to that !
Hope that helps !