@calwatch without a doubt, it is worthwhile for me because the DS and WMNM I have are uberly MS friendly. When the offer at one DS comes giving free GC when you buy 2 vanillas, my go-to DS does not blink if I buy 2 variables per register, total of $4K in one trip, get my free GCs on each transaction. That comes up to 50% off the fees per K so buying $30K++ in one week is doable. I don’t max out the Ink, the few times I use it are during sync promos or when there are in-store promos for buying VGCs. I use the CFU more for online GC purchase that has worked well for me, when my priority envie comes, I can easily drain them at my go-to WM soon as the CS opens; if I find the YVrep in a good mood and asks me if I want to buy more, I grab the chance to drain up to $10K, 4 strikes of plastics each. It’s really all YMMV and the place where I’m at is very encouraging. BTW, I don’t do delta.
Yes, it’s definitely a lot of work, we have to crunch our numbers (am focusing on CB now) and determine for ourselves if it’s worth our time. I don’t base my numbers on others’ computation. I focus on my goals and how to attain them.