Also, how much time you’re going to spend in the sim. Given that I’m sure I will fly this for years, and spend hundreds of hours in it, the additional $60 is worth it if I end up only using a couple of the extra planes or flying much into a few of the airports. Honestly, if you don’t go for the Premium Deluxe, I’d at least go for Deluxe to get O’Hare and the round-gauge Cessna 172. But Heathrow, San Francisco, Frankfurt, and Denver in the Premium Deluxe are really nice, as are the Citation Longitude, SR22, and Pipistrel Virus. And while the 787 has some issues, there are user tweaks out there that make it acceptable unless you’re a hardcore airline FMS type.
If you foresee playing long-term, IMHO getting the full deal is a small price to pay for a lot of content. Given the $15-20 cost of most add-ons (with a few planes up into the $40-50 range), it only takes three or four of the 20 items to make it worth the cost.
If you don’t really know how much the sim’s going to draw you in, don’t buy any edition. Sign up for PC Game Pass for a month, try it there, and then decide whether you’re into it enought to justify the bigger investment.