Cheapest ssd for a netbook?

so ive just acquired a net-book (an acer aspire one 522) from my uncle which has a crappy slow a** 250gb mechanical hard drive which i want to replace with a cheap ssd. storage isn't an issue because ill be accessing most of my files through a nas drive. what the cheapest decent ssd out there?

I put 128 GB SanDisk SSDs in netbooks, they cost only 50-55 bucks, and are MLC (which makes them reliable and gives them a good performance baseline for netbooks even when using full disk encryption with a dedup/compression based controller, as netbooks are limited to SATA2, and seldom bottom out the performance of SATA2). They have "cheap" written all over them, as they come in a black plastic housing etc, but they are ultra lightweight and do the job. I still use my EeePC 1005P on a daily basis, I get 13.5 hours of battery life on Arch after powertop optimization, and even more than that with OpenSuSE 13.1 out of the box (didn't do powertop yet), and I like the KDE DE on the OpenSuSE 13.1 (yay, it actually works!), it's the most 1024x600 friendly DE out there (no cropped dialog boxes), and even though KDE isn't the fastest solution, with OpenSuSE 13.1 it's actually surprisingly fast, faster than Gnome Shell on Fedora, and only a bit slower than XFCE on Fedora or Arch. I like netbooks, they are as portable as tablets, but way more functional. The only thing that really bugs me about KDE is that it's not possible to elegantly use the Super key ut singulum to start the launcher. Over the holidays, I'm going to try it out with the new ROSA Fresh release, I think their launcher/welcome on KDE could potentially benefit the workflow on a netbook.

sweet! funny you mentioned those linux distros as I was thinking of installing some form of linux onto the netbook. I tried the ubuntu 13.10 live cd, total opensource noob here, and the battery only lasted around 3hrs before i got a low battery notification- now that sucks! maybe the os couldn't optimize the power settings through a live cd, i dunno.

but 13.5hrs, thats crazy good. im downloading a copy of OpenSuSE 13.1 as im typing this to see how long the battery will last.