Yeah I am thinking the same.
Since I have free electricity I can only invest in "outdated" asics because they are cheap to buy.
And yes I am looking around 100 euros for a miner + power supply.
Thing is this would be my first time starting to mine and I lack loads of info but I keep searching on forums. And my conclusion is that it is worth it doing it like this.
Just buying cheap outdated mining asics and keep them going until they die, some bitcoins will be used to get more miners and some will be kept in my wallet for future, who knows how much a BTC will be in a few years, as I can see it tends to go up and don't see a reason why BTC will ever fail or disappear.
To me it seems like a good plan that will bring some profits long term.
Kind regards,
Noozzi
Bitcoin is relatively easy to mine, buy, sell, and trade; it's a mature community now. If you love computers and technology - mining is fun.