Have you ever purchased a gift from their wishlist?

Has she received it or acknowledged receipt?

Was it worth it in terms of getting her attention, making contact or leading to meets?

Just don't bother looking

The Wishlist is a pure honey trap. Here's all the problems with them:  

 
1. The items are listed with ridiculously high prices. Why the fuck would you buy these for a stranger?  No doubt Seeking is getting a commission on (perhaps 20-50%?) on every item purchased.  
2. POT's can and will use the Wishlist to get luxury bullshit crap with no intention of ever meeting you. In fact, getting her a Wishlist item ensures she will reclassify you from a POT SD to a SIMP who will pay and pay and pay without ever getting laid.  
3. Just clicking on a wishlist link sends a notice to the POT. You may not want her to know you are looking yet. There is no SD user setting to prevent the notice to the POT.  
4. Using her wishlist is contrary to Sugar Daddy rule #1: NO MONEY IN ADVANCE!  Just to clarify this, I shall explain: NO MONEY IN ADVANCE! NO MONEY IN ADVANCE! NO MONEY IN ADVANCE! NO MONEY IN ADVANCE! NO MONEY IN ADVANCE! NO MONEY IN ADVANCE! NO MONEY IN ADVANCE! NO MONEY IN ADVANCE! NO MONEY IN ADVANCE!  

 
Why? Because 100% of the time you will lose 100% of your money.  

 
If you really want to buy her flowers or earrings, wait until she delivers a sweaty, marathon, load swallowing, pussy filling, fuck session.  Then sure, "Here's some earrings from JC Penny, babe... wanna shower up and roll again?"

 
Life is good

 
The Cat

but I never buy anything.  I like using it as somewhat of an insight into the SB.  Is her list full of $5000 YSL bags and jewelry or is it full of sex toys and sexy clothes?

Don't know how accurate it is, but I find it helpful

...is the key.  They are priced quite competitively and will make you stand out amongst the Seeking unwashed.  Over the years I had great success with this approach and the cost is nada.