I find the concept of tangle very fascinating but I don't see much use for it in the very near future, I really like the project and the fact it is German and has many partnership but for the time being, I will rather invest in Bitcoin and other projects which in my opinion will be adopted faster. To me it seems much overvalued for the current real value it bring to the world but I am sure it will be a big thing in the future yes.

As other says it's mostly a matter of when and how long you want to wait though.