I am not PTA, but I know they've already raised more than 20k in my kids Primary so far, and there's still a few things to go this year, including the summer fair which raise a ton.
They've organised so far 2 school disco, monthly movie nights, a "star gazing" night, a reptile afternoon, a craft afternoon, a Christmas day, an Easter egg hunt, and the list goes on. All things that the children loved as all events were well attended. They are the ones organising the second-hand sales, so thanks to the PTA parents can buy dirt cheap uniforms, as well as the book sales.
We haven't got baked sales in my local schools, apart from the ones on fair day or over events, where visitors are happy to pay for refreshments and cakes.
I am not even PTA, and I am getting really bored of the PTA bashing threads on here. Parents are delighted to use PTA events as free childcare, they are happy to have discounted trips because the PTA put a chunk of money, they are happy for the kids to get access to new equipment the school cannot afford.
I am sure nothing is perfect and not everything is professional, but if you can do better of simply have suggestions, why don't you join and get involved, even for a few hours. All the PTA members in my school have jobs, and there are dads there too. It must be depressing to work hard and be constantly criticised, let alone struggle to find volunteers because no one can be arsed to spare 1 hour here and there.