I crawl under the machine and use my back too. But when I got a bingo pinball machine, that wasn't an option. A bingo pinball machine is way too heavy.
I went to Harbor Freight as others in this post have mentioned, but I bought the all aluminum motorcycle lift. The motorcycle lift doesn't go quite high enough so I made a wood box to put on the motorcycle lift. I added carpeting to the top side of the box so it doesn't scuff my machines.
I use it for pinball and slot machines. They are heavy too!
When I was at Harbor Freight I didn't see the lifting cart that ElectroCute bought. I think that he/she made a better purchase than I did.