I didn't really examine the quality of the components or anything, but here is an example of a bargain basement price motherboard.
http://www.newegg.com/Product/Product.aspx?Item=N82E16813135288
$25 shipped after rebate. That is well below my $30 target for the H61.
Not that I am going to suggest you get this board. I don't particularly trust the brand that much (although I do respect that they make tons of motherboards for the companies like DELL and IBM). Foxconn also makes tons of motherboards for those sorts of companies and I also wouldn't go around suggesting people that come in here buy Foxconn boards either.
That being said, the price is definitely right if it has everything you need and the board you get isn't flawed right out of the box.
ECS is probably much more likely to have flawed boards right out of the box than Gigabyte is, but that is why you pay 3x for the Gigabyte vs the ECS.
The same for it having everything you need, between ECS and Gigabyte I would guess the Gigabyte board would be the one with the better features vs the bargain basement ECS stuff.
However, people who roll the dice on the ECS and get lucky do get tons of value out of their relatively little expenditure.