I know this can be a frustrating process, but believe me, there are TONS of items you can obtain from dropshippers and sell profitably on eBay. It's just a matter of how to find them and where to look.
Saying that "all the dropshippers can't compete with eBay prices" is like saying that "all of the restaurants and stores in the world are too expensive". Blanket statements like this rarely hold up under scrutiny.
What do you mean when you say "all the dropshippers"? How many dropshippers did you review? 5? 10? 100? If it's less than 100, you haven't looked at enough of them.
And how did you conclude that their prices can't compete with eBay prices? Did you use a market research tool or just "eyeball" it? Did you look at current listings (unreliable) or completed listings (more reliable, but not as good as a market research tool)?
Sometimes it may take reviewing 100 dropshippers and products to find ones that are viable, but believe me, THEY'RE OUT THERE.
First of all, stay away from high-profile, saturated categories like electronics, computers, cell phone, cameras and video game systems, as well as low-priced media items (CDs, DVDs, video games, and books).
Then go to pulse.ebay.com and, after you ignore the top 10 most popular searches listed on the main page (WAAAYYYY too competitive), start narrowing down the list within each of eBay's main categories (other than the ones I mentioned above), and the 2 levels of sub-categories within each category, and you will find dozens and dozens of popular keywords/products.
Next, subscribe to and utilize a good eBay market research tool like Terapeak, and research each of the keywords/phrases you found on the Most Popular Searches lists on the Pulse site. Any of them with at least a 50% or higher sell-through rate is potentially profitable. Terapeak will also tell you the average selling price of each item, which you can start comparing to the prices you see on dropship websites. Naturally, not every product will end up being viable for you, but there many, many products out there which can be.