6 month ago when i started to use FPGA/VHDL i saw these cheap board on ebay and the price is sometime under half the price from the development board from Altera.
I wanted to buy one but the CD, example, schematic was all in Chinese and even if they said the instruction/schematic/example was in English they had negative comment in the feedback saying all the thing was in Chinese.
The primary role of a development board is to learn the thing. To have a good base to work from and to be sure all the thing work properly it's a must, if you can find a board well documented in English with example/schematic well why not, you will save some $$$, but the thing i learned with my many purchase from china it's the price is low and there a reason, quality something is meh, shipping take a while and when you have question the vendor reply you with automated response and most of the time they don't know what they sell. For my part i stopped to look on Ebay for these board because no one seem to have one, i tried to find review in many forum blog but it's blank, there some but nothing exciting and it seem the people who review are not very passionate for these thing or they recommend to buy the real thing..
If it's your first time with FPGA and you really want to put many hour to learn, nothing beat a real dev board from a known company, you will get support, example, quality part and you will know it's legit and working. The price maybe a stopper but these thing is not for everybody, when you start to touch exotic thing there always some $$$ involved but if you add the price for every part on the board you will see the price is low for what you get actually.
For my part i bought the DE0-nano, little thing under 100$, G sensor, 8 channel ADC, 32 meg sdram, eeprom, plenty of I/O, integrated blaster and a powerful Cyclone IV the downside is no lcd/seg display, only 2 push button 4 dip switch but i make and add what i need and it's a good reason to leave the screen to use my bench to make thing.