Man....I tell you what! If I had JohnThomas money, I would BURN mine.
I dont want to go all "there's children starving in China" on ya, but to look at that fine aerator, after just finishing an acre yard using a butter knife, sowing one lousy weed seed per hole, and saying an earnest prayer over each, I feel a little envious. I got blisters on blisters, but I might be able to catch me a critter, or find (make) some roadkill, and make me some gloves for next aeration. Before any of you write "What! You have a butter knife?!" let me say I am kidding! (I borrowed the knife)
I borrowed this plugger, and it does pretty good for the price. I drilled the tubes between the star wheels and put grease fittings in. (My social worker gave me the grease fittings.)
Agri-Fab at Lowe's: 48" Plug Aerator
I borrowed this too, and it is not worth a darn until you build a rack to hold some weight, and then it does pretty good.
Brinly-Hardy Co. | Lawn Care Products | Aerators | Aerator-Spreaders | AS-40BH
They call it a plug aerator, but its a spike. What I do is:
Plug the heck out of the yard. Then use that slitter/drop seeder over the yard. I like that better than any broadcast spreader because it drops the seed straight down. (It doesn't have a laser guide for each seed path like JohnThomas aerator, but poor folks like me can borrow a flashlight and shine it in front of each seed. Use a sparkler for a more random pattern.) You get a good amount of seed in each plugger hole, and maybe some in the slits too.