On paper the Pug is the cheaper dog: $80–150 a month against $150–300, and $1,100–2,300 in the first year against $2,000–4,000, at cost level 3/5 against 4/5. Food is negligible, grooming is a mitt, and weight-based veterinary items are priced at the bottom of the scale.
The figure that does not appear in those ranges is the probability of veterinary intervention. Airway surgery to widen nostrils and shorten an over-long soft palate is a common procedure in the breed and not a cheap one. Corneal ulcers can require repeated treatment and occasionally surgery. Anaesthesia carries additional risk in a brachycephalic dog and needs a practice that is set up for it, which sometimes means a referral rather than the local clinic. Insurance premiums for Pugs reflect all of this, and exclusions for pre-existing respiratory or ocular problems are common, so insuring early genuinely matters.
Against that, the Malamute's costs are large but predictable: food volume, weight-scaled dosing, secure fencing and equipment. Its health risks are orthopaedic and occasional rather than structural and constant.
Lifespan favours the Pug at 13 to 15 years against 10 to 14 — a fair reflection of the fact that most Pug problems are managed rather than fatal, provided the dog stays lean and cool.
The honest summary: a Pug from a breeder who is actively selecting for open airways, kept slim and kept out of the heat, is a delightful and manageable companion that fits almost any home. A Pug from a breeder who is not, in a warm climate, carrying extra weight, is a dog whose life is shaped by its breathing. That variance is far wider than anything on the Malamute's side of the table, and it is the single most important thing to get right.