Hi Matt, welcome to the forum and really good question
Is it the best place?
Well I would personally say that marketing your own online storefront is the best option, but of course that comes with having to spend a lot of cash up front to crack the market to start with. So maybe the best, certainly not the cheapest. eBay delivers that traffic rich environment you can take advantage of, but that of course also brings in the big fish, so that turns eBay into a very difficult market.
You have to be smart, a lot of new members come wanting to dropship the hottest selling items on eBay and then run around screaming about the prices and competition. Of course that's where you're going to find the biggest fish of the lot selling, the big wholesale volume buyers. You just can't bring a stick to a gun fight like that and hope to have a chance.
I think there are dropship opportunities there and people make money from it every day. You just have to be smart, look at markets where turnover is much lower, the big fish will usually stay in deep water and not venture into this shallows because it;s just not worth their time and effort. So those areas for me make far more sense for dropshipping.