Amazon has got the SanDisk Ultra Plus 128GB SSD (SDSSDHP-128G-G25) on sale for $99.99. It ships free with Super Saver Shipping.
SanDisk Ultra Plus SSD 128 GB SATA 6.0 Gbps 2.5-Inch Solid State Drive SDSSDHP-128G-G25
The SanDisk Ultra Plus SSD delivers the fast data rates required to support next-generation games, photo-editing programs, and other memory-intensive applications. The 128 GB SSD can achieve read speeds of up to 530 MB/s. You'll enjoy smoother overall system performance from start-up to shutdown, with near-instant program loading and faster operating system boot-up.