That all sounds good in theory but that is based on buying in the USA. Here in New Zealand the selection is far smaller on the local auction site and the prices far higher. It's sort of take what you can get a lot of the time. Currently there is a single OM4 for $500 so if you want one that is what you pay, another might not come up for 6 months.
Sounds you need to find some other folks and make up a bulk buy from KEH!
I do use a digital device in my photographic pursuits when necessary.
When someone rags on me for using film, I use a middle digit, upraised.