Es que no sé si tienen o no mucha calidad...Si alguien las tiene me podría ayudar, no?

Por ejemplo esta...que tal os parece?

ACHO C901 MID 8GB Hard Drive 256MB 7" TFT Touch Screen Tablet PC Notebook (White)

$142.39

Touch panel design for easy operation.
Support video and audio playing, picture browsing.
Suppot WiFi function.
Easy to carry and convenient to use.

http://www.focalprice.com/CE016W/ACHO_C901_MID_8GB_Hard_Drive_256MB_7_TFT_Touch_Screen_Tablet_PC_Notebook_White.html?utm_source=Stremsend1120&utm_medium=Email_Marketing&utm_campaign=B_CE016W&utm_source=streamsend&utm_medium=email&utm_content=13957189&utm_campaign=Up%20to%2020%25%20Discount%20%26%20Free%20Shipping%20on%20more%20than%2040%2C000%20Products