| "Ma'am - I really don't care if you fly Allegiant" - Punta Gorda gate agent Jan 2, 2019. The gate agent for our flight (1596) today - Jan 2, 2019 was quite possibly the worst I have ever dealt with in my flying history. I've flown all over the world and our family flies every 4-6 weeks - mostly frequently between Rochester NY and Southwest Florida. Until this past year I refused to fly Allegiant due to their bad on-time and service record but heard through friends that it wasn't too bad and have since flown with them 8 times. Today - the gate agent in Punta Gorda went out of her way to be nasty. I realize that, for the most part, you get what you pay for. This is why I always pay for upgraded seats (meaning we sit forward in seating position - not to be confused with better, bigger seats - because they are not. Not a problem. I know that and do not expect bigger better seats - still I pay more). In all of the previous flights, prior to today, I have traveled with the same luggage that I carried on today. As we approached the gate agent rudely told us to get out of line and stand aside as we needed to pay for a carry on. I told her I had flown with the bag, never having paid before, her response was "Well Today YOU DO." We watched many others board with the same or larger bags, before my husband approached and said "these people have the same size bag, why are they not paying?" She then looked for a passenger with a bag, took his phone from him and tried showing it to us. It was awkward and extremely unprofessional. When the rest of the plane had boarded and she was finally ready to "deal" with us and another passenger, she turned to us and said the bags we were boarding with had to be paid for. I tried to explain once again that we had boarded the flight to PGD without incident, as well as many other Allegiant flights with the same bag. She could not have been ruder as she turned back and said that all of the of the other gate agents are not paying attention which, then, makes her job that much harder. At this point, I turned to my husband and said if this is the way Allegiant is going to treat people, we won't fly with them in the future. Having overheard my comment to my husband, the gate agent then addresses me and says "Ma'am I really don't care! Thousands of people will." WOW - through this whole ordeal I was thinking...it takes just as much energy to be nice as it does to be nasty - Yet she chose to be as snarky and rude as she could possibly be. I paid for a checked baggage, paid for seats, paid for my pet to fly - obviously I would have paid for a carry on bag if I had realized the necessity. This flight did change my opinion of Allegiant Air, what if the pilot and crew on board had the same "Ma'am I really don't care attitude"? We won't be flying them again!