Simple suggestions here: Homes (probably costing 75-100k) that allow you to specialize in specific parts of the farming/subsistence areas of Glitch.
Ranch - Specializing in raising animals, allowing a glitch to raise at least twice the normal amount of animals, with very little space for gardening/trees.
Farm - Specializing in raising crops, allowing a glitch to raise/harvest 2-2.5 times as much of the various plants in Ur, with very little space for animals/trees.
Orchard - Specializing in growing Trees/Spice & Gas Plants, allowing a glitch to grow 1.5-2 times as many Trees, with little to moderate space for animals/crops.
Greenhouses - Specializing in growing herbs, allowing a glitch to raise about 2 times as much herbs as the current housing offers, with little space for animals/trees.
These would provide better "money sinks" for wealthy Glitchen.
A short time after they were implemented I would suggest dropping the vendor price of meats/crops/harvested materials. This would encourage glitches to make better use of the AH, since we would be able to farm these materials more steadily.
The favor may need reworked as well, to be slightly higher than the current ratio of favor to value (1:10 I think). Still being able to donate for decent favor would be nice however, at current, I sell most of my harvested materials (or donate them) since the sell price is typically higher/the same as the AH value.
After carefully watching certain goods on the AH (meats, cheeses, certain meals) I've noticed that many Glitchen don't even bother farming their own goods, they simply wait on the AH price to drop below the market value, buy, then resell to a vendor.