Is it 20K, 15K, 10K, 5K, 1K, 500$, 100$, or 50$? or less?
See, the story changes, what was nice months ago now is an extremely high risk.
Myself, I probably woudln't buy unless it's under 100$. Even that is questionable. Reason being, blockchain is a pipedream and BTC is a dinosaur within that dream. What future BTC has but speculation?
My answer to your question is: I'd buy at any of those prices. Just never on an upswing. This is because I believe in the technology, but the very nature of it means it's volatile - so buying on an upswing is just going to hurt you. There's always the risk of not knowing where the upswing is, ie this downswing might not be the real downswing - but nevertheless I believe my point stands.
Note though that I don't view these coins as value holders. I'm not a fan of the idea, so far at least, I vastly prefer transaction coins and coins that are a means to a feature, like storage coins. BTC is not that interesting to me, despite it's popularity, because just being a store of value isn't a big enough selling point to me.
Note that I'm not saying a store of value and/or BTC isn't inherently valuable, I just dislike a store of value because anything can be a store of value. So if the public decided tomorrow to use another store of value, BTC would be worthless. Unlike a coin that actually does something, like Filecoin, where the value in the coin will be derived from the usefulness of the coin. It seems less arbitrary, to me at least.
What is great/weird/... (select according to your opinion) is that the gains were huge in the last year.
I think the last time bitcoin had reasonable organic growth was when it was around $300-500 post Gox.
The reward halved so you’d naturally expect the price to increase from there, so let’s say $800-$1200 is reasonable to be generous.
Now you’ve got a bunch more infrastructure around it and more awareness, so double it or triple it from there— so $1500-$6000 or so seems like a plausible range. I suspect the price in the near future is going to be on the low end of that and stay there for a while.
There’s lots of mature, versatile database options out there: Postgres, SQLite, BerkeleyDB, and countless other NoSQL and CQRS solutions. Blockchain does one thing well, its immutability and intractability are not well suited to many applications.