In general, it is always good to have a closed housing on the printer.
Since you own an Ender 3 Pro and are immersed in a new world, new opportunities will show up which you do not see now:
Even if you don’t think about ABS - ASA is never bad. I rarely need it but this option is never a bad option and when you need it there is rarely a way around it - UV and Temperature resistance.
On the other hand, I really just want one with closed housing, the open ones are simply much more accessible in terms of accessibility. It doesn’t have to do with 100 USD more or less - it’s about my time. Of course, you rarely have to remove the covers. If you make PETG the casing is more annoying than useful. With TPU the case is absolutely unnecessary. But even if you say you don’t want ASA printing, the day is coming. Even if you will may never always print ASA.
So it matters whether you need the printer around the clock or are just an occasional user. If you print a lot, I wouldn’t underestimate the advantages of the X1. They are rarely recognize by YouTubers because they only test printers and the stuff doesn’t run 24/7 - they then only give rough directions and you have to be able to translate their words into your own application. As soon as money is involved and you use it to make sales, the P1S or P1P is quickly off the table (unless you print toys with a low income).
ABS is also a question of price. With your Ender 3 Pro you don’t expect the fillament prices that much, but if you come with Bambulab and and start using a kilo per day per printer, then 15 USD higher fillament prices per day are something that will interests you much more. Well I absolutely do not print ABS parts, but the material cost of my parts is meaningless to my benefit and what they are solving.
In general, Saying something about yourself is never a bad thing. Are you a homeowner and need a printer for your home? Do you have your own motorhome for which the printer is also needed? Do you make toys or technical applications? Do you buy the printer with your pocket money as a teenager for fun or are you an engineer so prototypes are needed befor the CNC milling is starting?