I think that there should be an option for higher price houses like 7,500 up that have both herb and garden plots and if price is really further up then should also have more patches for trees as well. Just a thought as there are none out there....
On the contrary, I don't think having all is what should be "Glitch" - I would like to see even more pressure to specialize, and more incentives to use the Auctions to get stuff. Perhaps bring in some more data for the auctions, so that prices are more stable there? Like the 3rd party sites that offer historical price data, e.g. http://zoggish.appspot.com/auctions/stats-tomato
I'm with knitbrit on this one. Wanting both herb and crop plots in the house isn't really "having all" IMO. There are plenty of things in the game I don't want to do but of the things I do want to do - I want to do all of.
Also, the last thing I would want in a game like Glitch is pressure. Doesn't sound fun.
I still think that making us choose one or the other is absolutely deliberate. It makes us rely on one another more, whether it's through sharing our plots or herbs/crops or selling/buying on auction. I like that we have to choose.