I would like to try to get into mining altcoins. I was thinking of first getting a single, not that expensive (1000-2000$) unit and see how it goes.
But I'm having a problem finding them.
I've only found out 3 companies, bitman, innosilicon and baikal. With the last being the most interesting to me with all that different algos it supports, but it's sold out. Not to mention I've read a LOT of complaints about all those 3 companies.
What am I missing here? Is this really how the ASIC market is like?
Do the experienced miners here have any recommendation for me?

Try and search their products on ebay, aliexpress or ask miners on bitcointalk of they have and are going to sell it on you.
On another hand try GPU mining, it's good and you can mine much more altcoin woth it. Also you can see good profit if you mine coins smart + gpu is much easier (for me) to care and it don't has much problem.