I went there today too. I hate going there. Not because I spend too much money, but because they keep their inventory so @#%^ thin that they NEVER have what I went for! Or, as in today, they don't even stock it.
I went for Sierra tubes. They sell the kits, but do they sell the tubes? Nope! So I thought I'd see if they had a lathe dust hood. NOPE! Only the $80 articulated arm thingamajig.
Went up the freeway to Woodcraft and they had the tubes. Wife and daughter were with me and sick of stores for Dad (went to craft stores and stuff too today) that I just grabbed the tubes and split. Forgot the dust hood.
So now I just tossed the useless 20% off coupon from Rockler. I really did try to use it!