I used to be a big fan of ceramic cookers. Now, my XL BGE is mostly a very expensive charcoal grill (that hardly ever get's used).
For $1500 I'd buy a Rec Tec RT-700 and and Weber Kettle 26". There isn't much a person can't do with your gasser, a good pellet cooker, and a kettle.
This (see above) is great advice and sort of gets you to the end of the Unicorn hunt without the expensive road to get there.
The journey for some will end with a UDS, Kamado, Kettle, or Pellet Smoker or most likely a collection of various cookers. The search for the perfect cooker (or Unicorn) is a verified sickness on this board and as a wise pit-master once told me, "The struggle is real".
For me, if I had known then (back when I didn't have any experience with smoking and equipment) what I know now, I might not have gone through various propane gassers, a couple BGE's, a propane smoker, multiple Traegers, multiple kettles, a couple of Akorns, several Traegers, a UDS, 2 WSM's, each of the 3 GMG's, a Cookshack Smokette, and Po'man grill (this was gift from my wife brought about by an instigator here that shall remain nameless).
I currently have a 26" Kettle, a GMG Davy Crockett, and Mak 1-Star and with this equipment, I have the versatility to grill or smoke just about anything for big gatherings or cooking for a treat just for me. The only piece of equipment I'm looking to get nowadays is the Mini- Mak, if it is every released and this will replace my GMG Davy Crockett. (I like small cookers because I often just cook for 2 of us).
Keeping in mind that you're just getting into the hobby and you don't know what you don't know, I'd have a difficult time dropping $1,500 on a single piece of equipment. Perhaps, take your time, get a used Trager on CL for around $250 to try out a pellet smoker. If you like it, keep it or get a higher end pellet smoker. If you don't like it, you can always sell it for what you bought it for. Used Kamados are much difficult to find, but they do pop up once in awhile. The safest bet is to get a 26" Kettle and learn to smoke on that for now and even see if you like smoking food. You can build from there and always keep the 26" for grilling.