That's definitely a weird mix of coins in a single lot - hard to know who it would appeal to.
I think if you're selling coins you really have to select the right venue for each class of coins, as well as be prepared to be patient (in case of consignment or reserve prices).
For high end coins, an auction may bring the best price, but obviously there's a large degree of luck as to what happens on the day. As a buyer it seems that some types of coin tend to sell for much higher prices at certain auction houses then others (a function of their repeat clientele, I suppose), so choosing the right auction for given types of coin is also a factor.
For mid range coins (better than typical eBay fare, but not good enough to justify an individual listing at auction), I suspect consigning to a dealer may be the best option. Even for more expensive coins, consigning may be a better option if you want to take the risk out of it and don't mind the wait.
For lower end coins, probably eBay is the way to go .. either set a realistic minimum and keep relisting, or no minimum and cross your fingers. If grouping coins into lots, then have some type of target buyer in mind for the type of coins you are grouping together.
For the group of coins in that Leu lot, being realistic, I think eBay may have been more appropriate for most if not all of them (unless there are some rarities I'm not recognizing that might have been worth consigning). It's always going to be tough to get your money back out of these types of coins, unless you acquired them for a steal. There's too much overhead in terms of postage and listing fees.