That's true but you may get your moneys worth using the open season benefit. I've only been a club member for 2 years now and I've used 4 open season reservations and only 2 club reservations and one RCI exchange.
It's nice to be able to get away for a few days without having to worry about owning more points and just renting from the club for a reasonable amount making the $114 a year worth it to me. I live in Florida though so I can get alot of short last minute trips because there are so many resorts in the club near me. I've used it for Ft. myers beach, Marco, 3 bedrooms in Orlando that I could not easily get thru RCI and renting is unreliable and difficult to find a deal that is reasonable.
If I had more vacation time I could have booked more cause there always seems to be something tempting me.
You only need to book 2 nights to take advantage of these getaways and you'd also have access to RCI for open season thru them although I've not yet taken advantage of that benefit yet. I imagine it works similar to the club open season where you have to call in to book.
When you book open season rates you don't have to pay the extra fees that RCI exchangers do since it's considered a club reservation.

If you join the HGVC club then you save the $89 RCI fee yet still get the benefit so in essence it's only costing you $25 more to be an HGVC member.