The OP is in Canada I'm not sure how renting your points works; I know I have heard brokers won't assist so your on your own I believe being international; a lot of people don't want to get involved in that situation (including me).
The memories can be had with or without
dvc. You're already having awesome vacations without it; I'm not saying don't buy I'm saying weigh your options and determine why you want dvc. The only reason for me was to save money. If that's your motivation then buy resale and trade points to stay at Riv.
This isn't like buying season tickets to football...this is like prepaying for football tickets you know will be available during the year and paying more just to say you're a season ticket holder.