I have several real pins (from the 90s, 2000s, as well as recent Stern). I also have a virtual pin cab. I like both but one is not an alternative for the other. Despite virtual pin being based on a facsimile of real pinball, to me the end result is a different thing. It's more akin to a hybrid video game that evokes some of the flavor of the more enjoyable aspects of pinball.
I primarily use the Vpin to play recreations of real pin tables which I like but won't fit into my real pinball collection size limit. BTW, that size limit isn't dictated primarily by space or budget. The time, effort and attention to maintain each additional pin in a collection is a major factor. The Vpin is also nice for brushing up on the rules and strategies of a game before league nights.
So having a Vpin cab is definitely worth it for us. However, I'm comfortable with configuring computer tech as well as installing and integrating disparate open source software modules. If someone is absolutely not PC tech savvy then that may be a barrier. Also, in my opinion virtual pinball gets good enough to be "worth it" when you have a high-end cabinet that's really dialed in. Between getting 4K HDR display frame rates correct, properly configuring a backglass display and third monitor for DMD, calibrating USB controller latency, dialing in a nudge sensing accelerometer, and tweaking 7.1 SSF (surround sound feedback) with haptic transducers and DOF solenoids - there's a lot to get "right". The vast majority of virtual pin cabinets I've seen aren't dialed in well at all and the owners usually don't even know it. That said, when a really top notch Vpin cab is really dialed in, it becomes something else, elevating the experience to a noticeably different level. Don't be fooled by one of those cheap $1k Vpin cabs from a warehouse club based around a glorified Android phone processor. Those things play like crap and are just trash not even worthy of the name "virtual pinball".
A really good Vpin cab is expensive to set up, requires fairly specialized arcane knowledge to configure and ongoing effort to keep dialed in. Just a good 4K HDR OLED display and a high-end graphics card each cost close to $1000 alone, before even considering the cost of two more monitors, a fast PC, the physical cab and a bunch of individual audio, SSF and DOF components. That's why I think some people who've formed negative impressions of virtual pinball have also never experienced it done right. So, even if you've decided it's not for you, if you ever have the chance to play a high-end Vpin cabinet really done right, it's worth giving it a chance. You may find yourself very pleasantly surprised.