So tomorrow is the third day of the month what means: HALF PRICE DAY! Every third day of the month is half price day, all items in the mainshops will be discounted by 50%. At which shops are you going to restock/AB and what are the other things that you are going to do on that day?
Yeah, the Stamp and Booktastic shop are really good ones today. They will be often cleared out and a lot of rare items will restock
Mostly of stamps and booktastic books, I guess I was very lucky to get 2 1m+ items Mostly are also ~99k items
Probably got those 1 mil before I started. So far the only big item I have seen was rainbow sticky hand stamp.
I think that you ran the AB for too long in one day. Whenever I came only that day you were ABing... Edit: I know it's tempting to AB a lot on half price day because all the shops are restocking a lot. But always try to be reasonable, AB for 1-2 hours and then pause for 1 hour. Also don't AB for like 6 hours+ in one day.