The statement is true. However, if you gradually selling higher quality on Ebay (not the other way around), people will start noticing your growth/improvement and they will bid higher. This happened to me.
My starting price varies from model to model. If the quality is low, I start with low price (usually $9.99 - $14.99). For higher quality piece, I start from mid price ($24.99 - 34.99). I haven't had lots of experience on selling stuff on Ebay, but advertisement along with good pictures really helps if you want to build credibility/existence. My 3rd auction was a Warmachine figure, Skarre. Who'd thought it went for $96! For an Ebay newbie, that's pretty awesome! (at least for me )
So that's my share on selling minis on Ebay from newbie to newbie