The SP2022 is an outstanding pistol and side by side firing it compared to my other SIGs it shoots just as well for me. It is also extremely accurate, durable, and reliable. My choice without question for a DA/SA poly frame combat 9MM pistol compared to any other with the Walther PPQ being my choice for striker fired poly frame 9mm combat pistol.
However it has a poly frame and other internals are much simplified compared to the classic P series SIGs such as the SP2022 has an integrated firing control unit.
Add to that the low production cost per until since capital costs and R&D were paid off long ago and the SP2022 was discontinued to favor the new P250.
Customer demand seems to have brough the SP2022 back and SIG is using it as a low price point to compete with other poly pistols, yet not taking sales away from the SIG classic pistol line, and to be the gateway drug for SIG as many go on to buy other SIGs after being delighted with their SP2022.
The P229 is a world class pistol used by the Secret Service. However you do not have to spend $900 to get one as there are a lot of excellent shape used ones and like new CPO, Certified Pre Owned, available. Used usually are $450 and up and CPO around $550. My P229 is a CPO and I could not tell it from new inside or out.
If you find a German SP2022 with triple serial numbers, night sights, and Ilaflon finished slide and controls those are great buys IMO and is what I have. They are getting harder to find but IMO well worth the cost over a new Exter SP2022 if you can get one for around $550 or less though any SP2022 is a great pistol.