When my gas grill dies I'm going all in on the pellet smoker.
There is a big difference in a pellet smoker and a grill. I have a traeger tailgater I bought to take to tailgates for making pork shoulder, brisket, pork belly burnt ends, etc. It doesnt get hot enough to grill on, but it is transportable and makes good food. I am in the RV lots so I can cook over night or start it super early.
I also have a big green egg which does both smoking and grilling. It can even be used as a pizza oven. But is too heavy/fragile to haul to ames every game (why I bought the traeger). So it stays at home. The green egg is better in every way. Especially if you have a temperature controller. It can be tricky to get the hang of temp controll though with out technology helping. The food makes it worth the effort to learn though. It can do high heat for grilling and searing or maintain very low temps for low slow cooks. I'm partial to the BGE but Kamado Joe makes a good product too. BGE also has a lifetime warranty on all ceramic parts for the original owner. So if anything cracks they will replace it. It doesnt cover negligence or say if a tree falls on it on a storm.
If you want to grill, pellet smokers aren't what you want. If you only want to do the long low slow smoking cooks, pellet smokers are good for that. They do make good barbeque, and are stupid easy to use. Need a power supply though.
My main point of this long post is that if you are looking to grill, do not buy a pellet smoker. If all you want to use it for is low slow cooks go for it. If you want to do both get a BGE or Kamado Joe. Or buy a second grill.