Yep--I do make my own. But I currently have two fermenters with mead in them (honey and agave nectar). Yum! And yes, expensive is one of the downsides to DH. But did you happen to catch the growler prices at Great Lakes? They charged me $17-18 dollars for a fill (already had my own growler). I went back in to ask someone else if that was the correct price. 
That's cool. I actually have some mead brewing as well, just a five gallon batch, my second ever. The first one took a year to clear out. This one will be a year old in August, where it will be served at my friend's wedding. I would like to keep some Mead around for a really long time, but we never can seem to leave the stuff alone for long.
Agave nectar sounds like an awesome addition. I used a gallon of local unfiltered and unpasteurized Apple Cider and a gallon of local wildflower honey, along with chopped organic raisins to give the yeast some nutrients to fight the antibiotic properties of the honey. I have heard but not confirmed that this kind of mead is referred to as cyser (actually mentioned in the Strangebrew brewing software), but usually cyser is just cider and honey with no added water.
Great Lakes has strange pricing schemes, apparently, since you can buy a 5 gallon keg for $60, I believe, with only a $10 deposit for the keg, (or is it $60 total). So really you could keep the keg and that's about the best bargain for a keg that I've ever seen. I have everything for the kegging setup except the CO
2 tank, which I'm currently borrowing from our local DIY shop. I'm about three and a half hours from Cleveland, but have friends who live there and go home every month or so.
Also, the owner of the DIY store has been hosting beer brewing competitions, about three times a year. For ten bucks, you can be a judge and taste between 15 and 30 brews. I got crazy for the first one and tasted 27 beers, including garlic beer and an awesome coffee stout that was about 8% Alcohol and had four pots of strong coffee in it. The coffee stout won. Maybe I should let you beer lovers know when the next competition gets scheduled. You can also enter your own beer for free and be a judge for free. The owner of the shop gives away gift certificates to the top five or so. Judging is less than scientific as you can imagine.
Cheers,
KenToad