In the future I'd like to buy a >20 gallon or so tank. I've been shopping around a bit, but I have other things in life right now like school and vehicle repairs that take priority over the goldfish.
Think of them as dogs, or cats if you like them, would you lock 3 dogs in a closet in their own filth and drastically shorten their lives to about 6 mos- 1 year?
Or lock 3 cats in a cage in their own filth and drastically shorten their lives to about 6 mos- 1 year?
I really hope the answer is no. So why do it to other living creatures? They haven't done anything wrong to derserve having to live in cramped conditions, or to go through all the pain of stunting, or live very, very short lives. If nothing else-you won't give them up or buy a big enough tank-why not a nice pond? they are alot cheaper than a tank.
a pre-formed 150gal liner is alot cheaper than a 150gal tank
and ponds look very nice, plus you could have a small tropical community with your ten gallon. Healthy, happy fish are alot more fun
Good luck with whatever you choose to do.