Nowadays, mining from Bulgaria, how long will I have the return on investment in this equipment? I was quite interested in acquiring, but I need to know if it's worth it.
if you ask questions like this, mining is not for you
Technically, if you ask questions like this you should do more research on mining. Then decide.
There're lot's of sites dedicated to calculating profits out there. Whattomine.com is a good starting place for most.