teacup?

so, for all of you who do not know, i adopted a chihuahua, long story short a yr ago, and gave him away, missed him, got him back. but anyway bck to when i adopted him, he as suppose to be a teacup pup, and unfortunately i was lied to and armani grew into an adult regular sized dog. disppointing really, but i really can't do anything about it. and my boyfriend, ben and i were discussing about getting another puppy this time tEACUP, and i found 2 people who actually breeds only teacup chihuahua to my amazment. but the prices are so high. idk if ishould get it? not get it?..... i emailed one asking whats the lowest price i can adopt one for. and hopefully she will let me have her for a reasonable price. and i really dont plan to get one at the moment because of school and everything. im currently stressed about finishing 60 units on time to transfer and what i want to do with my major, what i plan to b when i 'grow' up. its scary to think about what the heck do i want to do for the rest of my life until i retire. so im having difficulty deciding.