Its your call and your money. You will get a lot of different input on this. But as the norm goes there's basically three different categories.
In the fist category there are many of us that more/less had to ditch verticals and go to a crossbow due to some sort of physical condition. Speaking for myself, I hated giving up my verticals and fought it for all I had in me. But due to the pain from shooting a vertical I finally gave in, sold my verticals, and went 100% crossbow. Took me a couple years to finally like the crossbow gig but now I wonder why I hadn't went to one sooner.
The second category consists of those that simply likes crossbows. We have many on here that are very dedicated crossbow fellas. Its what they do on their spare time.
The third category are those that simply got into crossbows so they can extend their hunting seasons or have a chance at more tags. As more and more states accept crossbows, I see this category of folks increasing.
There may be other reasons as to why some folks went to crossbows. However, it appears that if one is getting up there in their years and are not having any issues drawing a vertical, they often times will have. Just a matter of time.
Good luck on your decision. There's just so many different crossbows on the market now days it would behoove any perspective buyer to do their homework prior to purchase. My advice is to go with one of the higher quality bows. Look at the features of each one. Speed, warranty, reviews, size, price, weight, does it require a press to work on the bow? etc.