It all depends on where you are now.
Have you already invested in your knowledge?
Have you been to one of the educational seminars?
SFS? Parakeet? oops I mean Partridge? Fisheater? oops I mean Pirhana?
Have you gotten a 5 year business plan together? (I know the answer to this because you are asking this question.)
I would have no interest in going into restoration from carpet cleaning because I have no desire to be on call all 24/7 no matter how much money it makes. My 2 cents.
I also would have no interest in setting up a rug depot because one of the greatest joys of cleaning carpets is getting away and not being tethered to a retail location. another 2 cents.
If you decide to spend the money to buy out one of your competitors make sure they are not the Sharp Shepard and come back to your market when the time is up and uses the mailing list that he sold you.
Where do you see yourself in five years and what area of your business needs the capital that will get you there quicker.
All the basic business plan questions come up--what do you want to do, where do you see yourself in 5 years, 10 years etc.
Don't spend the money until you get your future roughed out.
Good Luck,
Rick