Ebay is not the problem really.
Its the choice of sellers you make.
You are buying plant stock from hobbyists
and are expecting professional results/product,
not going to happen.
You know that even from professional nurseries, there is a percentage of bad ones.
That number grows exponentially when you buy from hobbyists.
Although many are enthusiastic growers,
most lack proper skills to produce good products.
Bad enough buying an annual in a situation like this,
far worse buying tree stock in this scenario.
Would you buy a gold bullion coin from JoeBlow4421 on ebay,
or buy one for a few dollars more on ebay from a well known dealer of gold bullion with thousands of positive feedback.
You guys are choosing joeblow then complaining you got screwed.
Its like walking up to a hot dog cart, order,
and expecting a steak dinner instead of a hotdog.