The CMV UDI's, mentioned earlier in this thread, can be a great value if you travel enough to fully utilize it. The trading power isn't great (probably the top 10% of things I can see with my best traders aren't visible with CMV), but it can still get some great things (and you can further multiply it by using II ShortStay Exchanges to get two 6-night stays for each deposit). With about $2000 in MFs and $150 per reservation in housekeeping fees, your net cost (before exchange fees) depends on how many weeks you can book. If 5, it's $550 per deposit. If 10, it's $350 per deposit. If 15 (about the most I've ever got in a year), it's $285 per deposit.
There are quite a few resorts with lockoffs in the $1000 range. Split those and deposit separately and you're at $500 per deposit.
FWIW, 5-10 years ago, all of these were about half the price, so it wasn't unusual for me to get good exchanges for about $350/week (including exchange fee, which was lower back then).