The difference in sales price is probably due to a higher HOA assessment. HOA at Manti Place is currently $204/month due to the additional special "Reserve" catch-up assessment of $50/unit - which is supposed to go away next year.
I hope this answers your question. If I can be of any further service, please feel free to contact me.
Susan Frush-Feller, SFR, CDPE
1021 Seven Hills Drive
Henderson, NV 89052
Phone: (702) 321-0131
Condos with considerable remodeling such as kitchens and bathrooms are going to list at a higher price point than those with basic selections. The two condo complexes that you list are both condo conversion properties meaning they were apartments at one point. Some owners remodeled their units while others kept the units as-is and rented them out. Depending on the quality of the work (and how well it shows), it wouldn't be unusual for a remodeled unit to sell for more. A quick look at the listing photos should give you an idea of upgrades, if any.