Yeah its good to invest in bitcoins now even though price is higher as price is continuously rising so we can expect that it will go even higher in coming months so if you are investing in it now there is a full possibility that you will make good profits in future.
Yes it's making sense.
Back then $1,000 value is considered as high price so basically an average bitcoiner doesn't wan to take the risk of buying and decided to wait for more dips but it doesn't happened. Now $1,000 is a bargain price to be considered. Same scenarios goes when price hits $1,500, $2,000 and so on.
In here we can really positively speculate that bitcoin will increase more while it progress. Expect big crash but soon it will be recoved. To purchase or not to purchase will depend on how people will handle those risks. Be brave enough because it's worth a shot.