BioWare's promise that the studio's made substantial changes to its Cartel Market in Star Wars: The Old Republic, fan site Darth Hater polled over 2500 players about how they use the item shop (if at all).
The results are quite fascinating. Most of those polled (89%) are still subscribed and have made purchases from the Cartel Market (87%). Only half of those polled spent real money on store currency, but of that sample, most had spent over $20 and 26% had spent over $100.
The most popular purchases on the Cartel Market from this survey were random Cartel packs (80%), legacy unlocks (61%), armor (33%), and XP boosts (20%). 22% of those surveyed said that they were disappointed with the market, while 40% were satisfied with it.