After a year of hit or miss rebates, i just cannot purchase because a rebate is offered anymore. I have to get the sale price upfront. I know it works for many BITOGers but I've bowed out.
I use the price per qt of Chevron's Supreme and the Havoline 6qt box as my baseline numbers to determine if a mfgs rebate is worth the (potential) hassle.
Using Walmart prices, the Supreme works out to be approx $2.50qt for a syn blend and $3.30qt for a full syn Havoline ProDS - no rebates necessary. Even Walmart's SuperTech full syn/dino brand is competitively priced year round, no rebates and QS has year round competitive prices on several formulas. With these year round prices I personally don't see a need to pop on every rebate promo. A rebate offer has to be a really good deal for me to bite.