I must respectfully disagree with your assessment of Columbus.
I wish you had gone into the
library - it's not just a library (for one, used to be a tavern) - it's a busy computer center and has what you might call a village living room with fireplace and couches. The library has more than 30 PCs and free wifi, used by students and adults in the area. People committed to this little town wrote and won a grant to get these computers. Doesn't look like much on the outside, but feels very homey on the inside.
One of the cafes (also on the main street) has a welcoming, colorful courtyard. There's a theater undergoing rehab.
When I visited in April, every person I talked to mentioned how much s/he liked living in Columbus - they felt safe, loved the inter-culturalism, and liked being apart from the busy-ness of more populous locations. Most were transplants.
There's a decent bed and breakfast there, where it's nice to sit out in front, under a shady roof, and watch for interesting traffic going by on Highway 9. (Think yachts.) Some folks use Columbus as their starting or finishing point for walking the Continental Divide Trail.
Columbus is also the terminus of an
annual, 12-day trail ride that begins in Madera, Mexico, and in which up to 100 riders take part.
Would it interest me to live there? No. But Columbus is far from a depressing, dead town.