The cardstock on the Pamela Colman Smith Commemorative set is sturdy but I like the way it shuffles and how the deck feels, I dislike decks that stick or clump together and don't shuffle smoothly, the Commemorative doesn't clump. I also love the colouring of this deck, even with the artificial ageing.
If you wanted a cheaper alternative, then Lo Scarabeo also released a new version called the PCS tarot. This has a very similar aged look to it but it's on the usual good quality LoS cardstock.
Those 2 RWS's are my favourites but I do own the Universal, the Radiant, the so-called Original (Rose and Lillies back) and a couple of the plaid back standards. I have issues with all of these decks but no problems at all with the Commemorative and LoS PCS.
Just take a look at the images and see which decks appeal. Some love the dark outlining and limited colours of the Original Rose and Lillies deck but it never really appealed to me and I don't like the yellow used on the Standard RWS. I was pleased when the Commemorative and the PCS decks were released and now they are the only RWS 's I use.