I don't think Bordeaux en primeur prices are worthwhile anymore compared to several years ago. And considering that you need to factor in the long wait (at least 1.5 years from now) before the wine reaches you, additional tax and delivery charges, storage space since you need to buy minimum 12 bottles of 750ml and also wait almost a decade or sometimes even more before the wines are mature.
For me it is still more feasible to buy something that is ready to drink or approachable. For Bordeaux you can easily find well aged ones readily available and there are so many other well priced wines out there to try as well.